Patent Id | Score | Title | Patent Type | Publication Date | Priority Date | Family Id | Search Efficiency | Original Assignee | Current Assignee |
|---|---|---|---|---|---|---|---|---|---|
| EP1303808A2 | 0.955 | COMPUTER SOFTWARE INSTALLATION | GRANT | 2003-04-23 | 2000-07-18 | 9895780 | Great | Bitarts Ltd | SIMPLEX MAJOR Sdn Bhd |
| US6141698A | 0.908 | Method and system for injecting new code into existing application code | GRANT | 2000-10-31 | 1997-01-29 | 25157848 | Great | Network Commerce Inc | CRS LLC |
| EP1126356A2 | 0.901 | Tamper resistant microprocessor | GRANT | 2001-08-22 | 2000-02-14 | 26585335 | Great | Toshiba Corp | Toshiba Corp |
| US5530752A | 0.895 | Systems and methods for protecting software from unlicensed copying and use | GRANT | 1996-06-25 | 1994-02-22 | 22738588 | Great | Convex Computer Corp | NortonLifeLock Inc |
| US6075862A | 0.887 | Decryption key management scheme for software distribution system | GRANT | 2000-06-13 | 1995-07-31 | 16328743 | Great | Toshiba Corp | Toshiba Corp |
| EP0115395B1 | 0.874 | COMPUTER PROCESSOR SYSTEM WITH SOFTWARE PROTECTION | GRANT | 1990-08-29 | 1983-01-26 | 10536953 | Great | Fujitsu Services Ltd | Fujitsu Services Ltd |
| US7000119B1 | 0.870 | Instruction/data protection employing derived obscuring instruction/data | GRANT | 2006-02-14 | 2000-04-20 | 35768073 | Great | RealNetworks Inc | Intel Corp |
| EP0962850A2 | 0.841 | A method for protecting embedded system software and embedded system | GRANT | 1999-12-08 | 1998-06-01 | 8551868 | Great | Nokia Mobile Phones Ltd, Nokia Oyj | Nokia Oyj |
| US4847902A | 0.841 | Digital computer system for executing encrypted programs | GRANT | 1989-07-11 | 1984-02-10 | 24315516 | Great | Prime Computer Inc | Bankers Trust Co |
| US7171693B2 | 0.839 | Information security method and system | GRANT | 2007-01-30 | 2000-05-12 | 22755673 | Great | Xtreamlok Pty Ltd | NortonLifeLock Inc |
| US6223288B1 | 0.834 | System for persistently encrypting critical software file to prevent installation of software program on unauthorized computers | GRANT | 2001-04-24 | 1998-05-22 | 22176669 | Great | Protexis Inc | III Holdings 12 LLC |
| US5625690A | 0.830 | Software pay per use system | GRANT | 1997-04-29 | 1993-11-15 | 22544360 | Great | Nokia of America Corp | AT&T Corp, Nokia of America Corp |
| EP0720098A1 | 0.829 | Apparatus for securing information systems organised around microprocessors | GRANT | 1996-07-03 | 1994-12-30 | 9470476 | Great | Thomson CSF SA | Thales SA |
| EP0932955A1 | 0.827 | SELF-DECRYPTING DIGITAL INFORMATION SYSTEM AND METHOD | GRANT | 1999-08-04 | 1996-09-12 | 26700571 | Great | ||
| US5359659A | 0.823 | Method for securing software against corruption by computer viruses | GRANT | 1994-10-25 | 1992-06-19 | 25414406 | Great | ||
| US5995623A | 0.814 | Information processing apparatus with a software protecting function | GRANT | 1999-11-30 | 1996-01-30 | 26349795 | Great | Fuji Xerox Co Ltd | Fuji Xerox Co Ltd |
| US20040193987A1 | 0.795 | Protection of software code from unauthorized use by executing portions of the code in a secure computer environment separate from the environment that executes the remaining portions of the code | APPLICATION | 2004-09-30 | 1995-07-13 | 19898393 | Great | Sospita AS | Sospita AS |
| EP1073051A2 | 0.794 | Signal processing apparatus and method and information recording medium to be used therein | GRANT | 2001-01-31 | 1999-07-29 | 16660879 | Great | Pioneer Corp | Pioneer Corp |
| US5802275A | 0.790 | Isolation of non-secure software from secure software to limit virus infection | GRANT | 1998-09-01 | 1994-06-22 | 23003500 | Great | Nokia of America Corp | AT&T Corp, Nokia of America Corp |
| EP0266748A2 | 0.786 | A software protection system using a single-key cryptosystem a hardware-based authorization system and a secure coprocessor | GRANT | 1988-05-11 | 1986-11-05 | 27129941 | Great | International Business Machines Corp | International Business Machines Corp |
| US5991399A | 0.786 | Method for securely distributing a conditional use private key to a trusted entity on a remote system | GRANT | 1999-11-23 | 1997-12-18 | 25539740 | Great | Intel Corp | Honeyman Cipher Solutions LLC |
| US6480959B1 | 0.786 | Software system and associated methods for controlling the use of computer programs | GRANT | 2002-11-12 | 1997-12-05 | 26748333 | Great | Jamama LLC | Hanger Solutions LLC |
| EP0706118A1 | 0.783 | DATA PROTECTION SYSTEM | GRANT | 1996-04-10 | 1994-04-22 | 14430570 | Great | Advance KK | Advance KK |
| US6868495B1 | 0.781 | One-time pad Encryption key Distribution | GRANT | 2005-03-15 | 1996-09-12 | 34279986 | Great | Open Security Solutions LLC | RPX Corp, Open Security Solutions LLC |
| US6334189B1 | 0.779 | Use of pseudocode to protect software from unauthorized use | GRANT | 2001-12-25 | 1997-12-05 | 26748332 | Great | Jamama LLC | Hanger Solutions LLC |
| EP0561685A2 | 0.778 | An electronic data protection system | GRANT | 1993-09-22 | 1992-03-16 | 13073046 | Great | Fujitsu Ltd | Fujitsu Ltd |
| EP0121853A2 | 0.777 | Data processing system having public encryption and private decryption keys | GRANT | 1984-10-17 | 1983-04-04 | 23914202 | Great | Burroughs Corp | Unisys Corp |
| US6643775B1 | 0.775 | Use of code obfuscation to inhibit generation of non-use-restricted versions of copy protected software applications | GRANT | 2003-11-04 | 1997-12-05 | 29272544 | Great | Jamama LLC | Hanger Solutions LLC |
| EP0268139A2 | 0.772 | Manipulating rights-to-execute in connection with a software copy protection mechanism | GRANT | 1988-05-25 | 1986-11-05 | 26108649 | Great | International Business Machines Corp | International Business Machines Corp |
| US5844986A | 0.771 | Secure BIOS | GRANT | 1998-12-01 | 1996-09-30 | 24909346 | Great | Intel Corp | Intel Corp |
| US4634807A | 0.770 | Software protection device | GRANT | 1987-01-06 | 1984-08-23 | 10565726 | Great | National Research Development Corp of India | BTG International Ltd |
| US4817140A | 0.768 | Software protection system using a single-key cryptosystem a hardware-based authorization system and a secure coprocessor | GRANT | 1989-03-28 | 1986-11-05 | 25455024 | Great | International Business Machines Corp | International Business Machines Corp |
| US5224166A | 0.766 | System for seamless processing of encrypted and non-encrypted data and instructions | GRANT | 1993-06-29 | 1992-08-11 | 25456876 | Great | International Business Machines Corp | International Business Machines Corp |
| US7051200B1 | 0.765 | System and method for interfacing a software process to secure repositories | GRANT | 2006-05-23 | 2000-06-27 | 24419919 | Great | Microsoft Corp | Microsoft Technology Licensing LLC |
| US7822979B2 | 0.763 | Method and apparatus for secure execution using a secure memory partition | GRANT | 2010-10-26 | 2000-06-30 | 24436506 | Great | Intel Corp | Intel Corp |
| EP0191162A2 | 0.760 | Method of software protection | GRANT | 1986-08-20 | 1984-12-18 | 24741461 | Great | International Business Machines Corp | International Business Machines Corp |
| US5109413A | 0.757 | Manipulating rights-to-execute in connection with a software copy protection mechanism | GRANT | 1992-04-28 | 1986-11-05 | 27032721 | Great | International Business Machines Corp | International Business Machines Corp |
| US5881287A | 0.756 | Method and apparatus for copy protection of images in a computer system | GRANT | 1999-03-09 | 1994-08-12 | 23111929 | Great | SOL LABS KG LLC | SOL LABS KG LLC |
| US7757097B2 | 0.754 | Method and system for tamperproofing software | GRANT | 2010-07-13 | 1999-09-03 | 35811750 | Great | Purdue Research Foundation | Purdue Research Foundation |
| US6006328A | 0.746 | Computer software authentication protection and security system | GRANT | 1999-12-21 | 1995-07-14 | 27157876 | Great | ||
| US5146575A | 0.746 | Implementing privilege on microprocessor systems for use in software asset protection | GRANT | 1992-09-08 | 1986-11-05 | 25454519 | Great | International Business Machines Corp | International Business Machines Corp |
| EP0302710A2 | 0.745 | A method of controlling the use of computer programs | GRANT | 1989-02-08 | 1987-08-05 | 22168357 | Great | International Business Machines Corp | International Business Machines Corp |
| US7539875B1 | 0.741 | Secure repository with layers of tamper resistance and system and method for providing same | GRANT | 2009-05-26 | 2000-06-27 | 24418492 | Great | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6308256B1 | 0.735 | Secure execution of program instructions provided by network interactions with processor | GRANT | 2001-10-23 | 1999-08-18 | 23488542 | Great | Sun Microsystems Inc | Oracle America Inc |
| US5416840A | 0.735 | Software catalog encoding method and system | GRANT | 1995-05-16 | 1993-07-06 | 22208084 | Great | Phoenix Technologies Ltd | Kinglite Holdings Inc |
| US6523119B2 | 0.734 | Software protection device and method | GRANT | 2003-02-18 | 1996-12-04 | 25059750 | Great | Rainbow Technologies Inc | SafeNet Inc |
| US5237611A | 0.731 | Encryption/decryption apparatus with non-accessible table of keys | GRANT | 1993-08-17 | 1992-07-23 | 25439035 | Great | Crest Industries Inc | CREST INDUSTRIES Inc A Corp OF WA, Crest Industries Inc |
| EP0794487A2 | 0.725 | Image information processing system and microprocessor for the protected reproduction of AV data | GRANT | 1997-09-10 | 1996-03-08 | 27294252 | Great | Panasonic Corp | Panasonic Corp |
| EP0768601A1 | 0.723 | DEVICE FOR EXECUTING ENCIPHERED PROGRAM | GRANT | 1997-04-16 | 1995-04-27 | 14370339 | Great | Casio Computer Co Ltd | Casio Computer Co Ltd |
| US4633388A | 0.722 | On-chip microprocessor instruction decoder having hardware for selectively bypassing on-chip circuitry used to decipher encrypted instruction codes | GRANT | 1986-12-30 | 1984-01-18 | 24284980 | Great | Siemens Corporate Research and Support Inc | Siemens Corporate Research and Support Inc |
| EP0679978A1 | 0.720 | Method and apparatus enabling software trial using a decryption stub | GRANT | 1995-11-02 | 1994-04-25 | 22883794 | Great | International Business Machines Corp | International Business Machines Corp |
| US6272636B1 | 0.718 | Digital product execution control and security | GRANT | 2001-08-07 | 1997-04-11 | 25273283 | Great | Preview Systems Inc | SafeNet Data Security Israel Ltd |
| US6675298B1 | 0.718 | Execution of instructions using op code lengths longer than standard op code lengths to encode data | GRANT | 2004-01-06 | 1999-08-18 | 23488545 | Great | Sun Microsystems Inc | Oracle America Inc |
| US7124437B2 | 0.716 | System for dynamically encrypting information for secure internet commerce and providing embedded fulfillment software | GRANT | 2006-10-17 | 1996-06-28 | 26707371 | Great | Protexis Inc | Arvato Digital Services LLC |
| US7421586B2 | 0.716 | Protecting mobile code against malicious hosts | GRANT | 2008-09-02 | 1999-05-12 | 32913186 | Great | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV |
| US4864616A | 0.715 | Cryptographic labeling of electronically stored data | GRANT | 1989-09-05 | 1987-10-15 | 22323942 | Great | Micronyx Inc | MICRONYX Inc 1901 N CENTRAL EXPRESSWAY SUITE 400 RICHARDSON TEXAS 75080, Micronyx Inc |
| EP0681233A1 | 0.715 | Method and apparatus enabling software trial using an encryption header | GRANT | 1995-11-08 | 1994-04-25 | 22883783 | Great | International Business Machines Corp | International Business Machines Corp |
| US5892906A | 0.714 | Apparatus and method for preventing theft of computer devices | GRANT | 1999-04-06 | 1996-07-19 | 24749007 | Great | SafeNet Inc | SafeNet Inc |
| US4864494A | 0.712 | Software usage authorization system with key for decrypting/re-encrypting/re-transmitting moving target security codes from protected software | GRANT | 1989-09-05 | 1986-03-21 | 25287612 | Great | Computerized Data Systems for Manufacturing Inc | Computerized Data Systems for Manufacturing Inc |
| US6681212B1 | 0.712 | Internet-based automated system and a method for software copyright protection and sales | GRANT | 2004-01-20 | 1999-04-23 | 30002560 | Great | ||
| USRE39802E1 | 0.712 | Storage medium for preventing an irregular use by a third party | GRANT | 2007-08-28 | 1992-03-16 | 26399131 | Great | Fujitsu Ltd | Fujitsu Ltd |
| US7287166B1 | 0.711 | Guards for application in software tamperproofing | GRANT | 2007-10-23 | 1999-09-03 | 38657211 | Great | Purdue Research Foundation | Purdue Research Foundation |
| EP0679977A1 | 0.705 | Method and apparatus enabling software trial allowing the distribution of software objects | GRANT | 1995-11-02 | 1994-04-25 | 22897809 | Great | International Business Machines Corp | International Business Machines Corp |
| US6711553B1 | 0.703 | Method and apparatus for digital content copy protection | GRANT | 2004-03-23 | 2000-02-25 | 29707964 | Great | Kent Ridge Digital Labs | Kent Ridge Digital Labs |
| US4558176A | 0.703 | Computer systems to inhibit unauthorized copying unauthorized usage and automated cracking of protected software | GRANT | 1985-12-10 | 1982-09-20 | 23666980 | Great | ||
| US5757915A | 0.702 | Parameterized hash functions for access control | GRANT | 1998-05-26 | 1995-08-25 | 24067740 | Great | Intel Corp | Intel Corp |
| US7225322B2 | 0.699 | Methods of microprocessor instruction result obfuscation | GRANT | 2007-05-29 | 1999-08-18 | 29711920 | Great | Sun Microsystems Inc | Sun Microsystems Inc |
| US8024810B2 | 0.698 | Method and apparatus for protecting digital data by double re-encryption | GRANT | 2011-09-20 | 1998-10-15 | 17992773 | Great | Intarsia Software LLC | Kioba Processing LLC |
| US5894516A | 0.698 | Broadcast software distribution | GRANT | 1999-04-13 | 1996-07-10 | 24727723 | Great | NCR Corp | NCR Corp |
| US7360252B1 | 0.693 | Method and apparatus for secure distribution of software | GRANT | 2008-04-15 | 1999-04-30 | 39281750 | Great | Macrovision Corp | Flexera Software LLC |
| US5222136A | 0.692 | Encrypted communication system | GRANT | 1993-06-22 | 1992-07-23 | 25440240 | Great | Crest Industries Inc | CREST INDUSTRIES Inc A CORP OF WASHINGTON, Crest Industries Inc |
| US4408203A | 0.691 | Security system for electronic funds transfer system | GRANT | 1983-10-04 | 1978-01-09 | 26900299 | Great | Mastercard International Inc | Mastercard International Inc |
| EP0679979A1 | 0.688 | Method and apparatus enabling software trial with a try-and-buy user interaction | GRANT | 1995-11-02 | 1994-04-25 | 22883809 | Great | International Business Machines Corp | International Business Machines Corp |
| US6336189B1 | 0.686 | Apparatus and method for data capsule generation | GRANT | 2002-01-01 | 1997-07-10 | 16160796 | Great | Fuji Xerox Co Ltd | Fuji Xerox Co Ltd |
| US5455862A | 0.685 | Apparatus and method for encrypting communications without exchanging an encryption key | GRANT | 1995-10-03 | 1993-12-02 | 22578934 | Great | Crest Industries Inc | CRESTECH LLC |
| EP0339115A1 | 0.685 | Method for the protection of a programme stored on a recording medium | GRANT | 1989-11-02 | 1988-04-28 | 8198926 | Great | Siemens AG | Siemens AG |
| US5694472A | 0.683 | Personal access management system | GRANT | 1997-12-02 | 1995-02-13 | 23533434 | Great | ETA Tech Corp | CYPHERCOMM Inc |
| US4259720A | 0.682 | Security system for electronic funds transfer system | GRANT | 1981-03-31 | 1978-01-09 | 25350725 | Great | INTERBANK CARD ASSOCIATION | INTERBANK CARD ASSOCIATION |
| US5682428A | 0.682 | Personal access management system | GRANT | 1997-10-28 | 1995-02-13 | 23533420 | Great | ETA Tech Corp | CYPHERCOMM Inc |
| US5692049A | 0.680 | Personal access management system | GRANT | 1997-11-25 | 1995-02-13 | 23533449 | Great | ETA Tech Corp | CYPHERCOMM Inc |
| US5696825A | 0.676 | Personal access management system | GRANT | 1997-12-09 | 1995-02-13 | 23533413 | Great | ETA Tech Corp | CYPHERCOMM Inc |
| US4652990A | 0.675 | Protected software access control apparatus and method | GRANT | 1987-03-24 | 1983-10-27 | 24179325 | Great | REMOTE SYSTEMS Inc | REMOTE SYSTEMS Inc |
| US5903647A | 0.671 | Self-launching encrypted digital information distribution system | GRANT | 1999-05-11 | 1995-06-07 | 23898200 | Great | Digital River Inc | Digital River Inc |
| EP0908810A2 | 0.670 | Secure processor with external memory using block chaining and block re-ordering | GRANT | 1999-04-14 | 1997-10-10 | 25488612 | Great | Arris Technology Inc | Arris Technology Inc |
| US5343527A | 0.669 | Hybrid encryption method and system for protecting reusable software components | GRANT | 1994-08-30 | 1993-10-27 | 22496991 | Great | International Business Machines Corp | Lockheed Martin Corp |
| US5224160A | 0.669 | Process for securing and for checking the integrity of the secured programs | GRANT | 1993-06-29 | 1987-02-23 | 27433834 | Great | Wincor Nixdorf International GmbH | Fujitsu Technology Solutions GmbH |
| US5734819A | 0.668 | Method and apparatus for validating system operation | GRANT | 1998-03-31 | 1994-10-12 | 23254037 | Great | International Business Machines Corp | International Business Machines Corp |
| US5870543A | 0.668 | System for preventing unauthorized copying of active software | GRANT | 1999-02-09 | 1995-06-07 | 23889640 | Great | Digital River Inc | Digital River Inc |
| EP0265183A2 | 0.668 | Billing system for computer software | GRANT | 1988-04-27 | 1986-10-24 | 25447441 | Great | ||
| US5883955A | 0.667 | On-line try before you buy software distribution system | GRANT | 1999-03-16 | 1995-06-07 | 23928895 | Great | Digital River Inc | Digital River Inc |
| US7140005B2 | 0.667 | Method and apparatus to test an instruction sequence | GRANT | 2006-11-21 | 1998-12-21 | 22811342 | Great | Intel Corp | Intel Corp |
| US6249866B1 | 0.664 | Encrypting file system and method | GRANT | 2001-06-19 | 1997-09-16 | 25461329 | Great | Microsoft Corp | Microsoft Technology Licensing LLC |
| US4670857A | 0.664 | Cartridge-controlled system whose use is limited to authorized cartridges | GRANT | 1987-06-02 | 1981-10-26 | 23223349 | Great | ||
| US5592549A | 0.664 | Method and apparatus for retrieving selected information from a secure information source | GRANT | 1997-01-07 | 1995-06-15 | 23952627 | Great | Infosafe Systems Inc | HARMONY LOGIC SYSTEMS LLC |
| US5999622A | 0.663 | Method and apparatus for protecting widely distributed digital information | GRANT | 1999-12-07 | 1995-11-22 | 24245505 | Great | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6523118B1 | 0.663 | Secure cache for instruction and data protection | GRANT | 2003-02-18 | 1998-06-29 | 22312877 | Great | Koninklijke Philips NV | NXP BV |
| US5649187A | 0.663 | Method and apparatus for remotely controlling and monitoring the use of computer software | GRANT | 1997-07-15 | 1989-04-28 | 23353434 | Great | SofTel Inc | SofTel Inc |
| US5907617A | 0.663 | Try before you buy software distribution and marketing system | GRANT | 1999-05-25 | 1995-06-07 | 23938715 | Great | Digital River Inc | Digital River Inc |
| US5034980A | 0.659 | Microprocessor for providing copy protection | GRANT | 1991-07-23 | 1987-10-02 | 17202313 | Great | Intel Corp | Intel Corp |
| US4525599A | 0.658 | Software protection methods and apparatus | GRANT | 1985-06-25 | 1982-05-21 | 23502378 | Great | General Computer Corp | GCC Technologies Inc |
| US6351813B1 | 0.658 | Access control/crypto system | GRANT | 2002-02-26 | 1996-02-09 | 26682374 | Great | Digital Privacy Inc | INTEGRATED TECHNOLOGOES OF AMERICA Inc, Digital Privacy Inc |
| US5497479A | 0.656 | Method and apparatus for remotely controlling and monitoring the use of computer software | GRANT | 1996-03-05 | 1989-04-28 | 26994243 | Great | SofTel Inc | SofTel Inc |
| US4688169A | 0.656 | Computer software security system | GRANT | 1987-08-18 | 1985-05-30 | 24971099 | Great | ||
| EP1031909A2 | 0.655 | A system and method for manipulating a computer file and/or program | GRANT | 2000-08-30 | 1999-02-23 | 22972212 | Great | Sightsoundcom Inc | DMT Licensing LLC |
| US5883954A | 0.654 | Self-launching encrypted try before you buy software distribution system | GRANT | 1999-03-16 | 1995-06-07 | 23889197 | Great | Digital River Inc | Digital River Inc |
| US5666411A | 0.653 | System for computer software protection | GRANT | 1997-09-09 | 1994-01-13 | 22661068 | Great | Intarsia Software LLC | Intarsia Software LLC |
| US5301247A | 0.651 | Method for ensuring secure communications | GRANT | 1994-04-05 | 1992-07-23 | 25440266 | Great | Crest Industries Inc | Crest Industries Inc |
| US5394469A | 0.650 | Method and apparatus for retrieving secure information from mass storage media | GRANT | 1995-02-28 | 1994-02-18 | 22734578 | Great | Infosafe Systems Inc | HARMONY LOGIC SYSTEMS LLC |
| US4959861A | 0.650 | Security system for computer software | GRANT | 1990-09-25 | 1988-07-13 | 22814893 | Great | ||
| US5337357A | 0.648 | Method of software distribution protection | GRANT | 1994-08-09 | 1993-06-17 | 22264740 | Great | Software Security Inc | SafeNet Inc |
| US5490216A | 0.645 | System for software registration | GRANT | 1996-02-06 | 1992-09-21 | 25644335 | Great | Uniloc Singapore Pvt Ltd | Uniloc Luxembourg SA |
| US7336789B1 | 0.645 | System for providing encrypted data system for decrypting encrypted data and method for providing a communication interface in such a decrypting system | GRANT | 2008-02-26 | 1998-08-31 | 8234071 | Great | Irdeto Access BV | Irdeto BV |
| US7430670B1 | 0.645 | Software self-defense systems and methods | GRANT | 2008-09-30 | 1999-07-29 | 39776569 | Great | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US6594761B1 | 0.644 | Tamper resistant software encoding | GRANT | 2003-07-15 | 1999-06-09 | 23283915 | Great | Cloakware Corp | Irdeto BV |
| US6088452A | 0.642 | Encoding technique for software and hardware | GRANT | 2000-07-11 | 1996-03-07 | 24451142 | Great | Northern Telecom Ltd | Nortel Networks Ltd |
| US6157721A | 0.639 | Systems and methods using cryptography to protect secure computing environments | GRANT | 2000-12-05 | 1996-08-12 | 24769786 | Great | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US6173402B1 | 0.637 | Technique for localizing keyphrase-based data encryption and decryption | GRANT | 2001-01-09 | 1998-03-04 | 21875522 | Great | International Business Machines Corp | International Business Machines Corp |
| US7236610B1 | 0.637 | Authenticating executable code and executions thereof | GRANT | 2007-06-26 | 1998-04-30 | 38178825 | Great | FRAUNHOFER GESELLSCHAFT | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV |
| US5481610A | 0.634 | Digital radio transceiver with encrypted key storage | GRANT | 1996-01-02 | 1994-02-28 | 22751072 | Great | Ericsson Inc | Ericsson Inc |
| US6473861B1 | 0.633 | Magnetic optical encryption/decryption disk drive arrangement | GRANT | 2002-10-29 | 1998-12-03 | 22757173 | Great | ||
| US7519810B2 | 0.632 | Methods for conducting server-side encryption/decryption-on-demand | GRANT | 2009-04-14 | 1999-06-30 | 38429777 | Great | Educational Testing Service | Educational Testing Service |
| US5473687A | 0.632 | Method for retrieving secure information from a database | GRANT | 1995-12-05 | 1993-12-29 | 22637323 | Great | Infosafe Systems Inc | HARMONY LOGIC SYSTEMS LLC |
| US4937861A | 0.632 | Computer software encryption apparatus | GRANT | 1990-06-26 | 1988-08-03 | 22854192 | Great | Kelly Services Inc | Kelly Services Inc |
| US5007082A | 0.631 | Computer software encryption apparatus | GRANT | 1991-04-09 | 1988-08-03 | 27397756 | Great | Kelly Services Inc | Kelly Services Inc |
| US4747139A | 0.629 | Software security method and systems | GRANT | 1988-05-24 | 1984-08-27 | 27094508 | Great | ||
| US6345359B1 | 0.628 | In-line decryption for protecting embedded software | GRANT | 2002-02-05 | 1997-11-14 | 25517185 | Great | Raytheon Co | Raytheon Co |
| US6959390B1 | 0.628 | Data processing system and method for maintaining secure user private keys in non-secure storage | GRANT | 2005-10-25 | 1999-03-03 | 35115414 | Great | International Business Machines Corp | International Business Machines Corp |
| US5757919A | 0.627 | Cryptographically protected paging subsystem | GRANT | 1998-05-26 | 1996-12-12 | 25069838 | Great | Intel Corp | Intel Corp |
| US5557346A | 0.627 | System and method for key escrow encryption | GRANT | 1996-09-17 | 1994-08-11 | 23112250 | Great | Trusted Information Systems Inc | McAfee LLC |
| US5696823A | 0.627 | High-bandwidth encryption system with low-bandwidth cryptographic modules | GRANT | 1997-12-09 | 1995-03-31 | 23644008 | Great | Nokia of America Corp | Nokia of America Corp |
| US5559884A | 0.626 | Method and system for generating and auditing a signature for a computer program | GRANT | 1996-09-24 | 1994-06-30 | 23025286 | Great | Microsoft Corp | Microsoft Technology Licensing LLC |
| US5014234A | 0.625 | System with software usage timer and counter for allowing limited use but preventing continued unauthorized use of protected software | GRANT | 1991-05-07 | 1986-08-25 | 25412143 | Great | NCR Corp | NCR Corp |
| US5758068A | 0.625 | Method and apparatus for software license management | GRANT | 1998-05-26 | 1995-09-19 | 24112239 | Great | International Business Machines Corp | International Business Machines Corp |
| US4593353A | 0.625 | Software protection method and apparatus | GRANT | 1986-06-03 | 1981-10-26 | 23222661 | Great | TELECOMMUNICATIONS ASSOC Inc | Rainbow Technologies Inc |
| US6202152B1 | 0.624 | System and method for accessing information decrypted in multiple-byte blocks | GRANT | 2001-03-13 | 1998-01-27 | 21762989 | Great | Philips Semiconductors Inc | NXP BV |
| US20070271191A1 | 0.624 | METHOD AND APPARATUS FOR SECURE DISTRIBUTION OF SOFTWARE | APPLICATION | 2007-11-22 | 2000-03-09 | 38713115 | Great | Macrovision Corp | Flexera Software LLC |
| US5029206A | 0.624 | Uniform interface for cryptographic services | GRANT | 1991-07-02 | 1989-12-27 | 23817457 | Great | Motorola Solutions Inc | General Dynamics C4 Systems Inc |
| US6591415B1 | 0.623 | Polymorphic code generation method and system therefor | GRANT | 2003-07-08 | 1999-04-30 | 26829777 | Great | Trymedia Systems | Macrovision Corp |
| US6003117A | 0.622 | Secure memory management unit which utilizes a system processor to perform page swapping | GRANT | 1999-12-14 | 1997-10-08 | 25486049 | Great | Philips Semiconductors Inc | III Holdings 6 LLC |
| US6775778B1 | 0.620 | Secure computing device having boot read only memory verification of program code | GRANT | 2004-08-10 | 1998-05-29 | 32829232 | Great | Texas Instruments Inc | Texas Instruments Inc |
| US20040139211A1 | 0.619 | Systems and methods for prevention of peer-to-peer file sharing | APPLICATION | 2004-07-15 | 1995-12-20 | 32719700 | Great | NB Networks | NB Networks |
| US20090063846A1 | 0.619 | SYSTEMS AND METHODS FOR PREVENTION OF PEER-TO-PEER FILE SHARING | APPLICATION | 2009-03-05 | 1995-12-20 | 24300598 | Great | NB Networks | NB Networks |
| US4306289A | 0.618 | Digital computer having code conversion apparatus for an encrypted program | GRANT | 1981-12-15 | 1980-02-04 | 22375982 | Great | Western Electric Co Inc | Nokia of America Corp |
| US6862683B1 | 0.618 | Method and system for protecting native libraries | GRANT | 2005-03-01 | 2000-03-24 | 34193405 | Great | Micro Focus Software Inc | Oracle International Corp |
| US7043641B1 | 0.618 | Encryption in a secure computerized gaming system | GRANT | 2006-05-09 | 2000-03-08 | 24072450 | Great | International Game Technology | International Game Technology |
| US5542045A | 0.618 | Method for interposing a security function in a computer program | GRANT | 1996-07-30 | 1993-10-15 | 22479249 | Great | Software Security Inc | Software Security Inc, Rainbow Technologies Inc |
| EP0875815A2 | 0.617 | Information processing apparatus and method and recording medium | GRANT | 1998-11-04 | 1997-04-30 | 14580238 | Great | Sony Corp | Sony Corp |
| US6684198B1 | 0.617 | Program data distribution via open network | GRANT | 2004-01-27 | 1997-09-03 | 25446908 | Great | Sega Games Co Ltd | Sega Games Co Ltd |
| US6708274B2 | 0.615 | Cryptographically protected paging subsystem | GRANT | 2004-03-16 | 1998-04-30 | 22100902 | Great | Intel Corp | Intel Corp |
| US6067622A | 0.611 | Software security system using remove function to restrict unauthorized duplicating and installation of an application program | GRANT | 2000-05-23 | 1996-01-02 | 24326654 | Great | ||
| US5557765A | 0.610 | System and method for data recovery | GRANT | 1996-09-17 | 1994-08-11 | 26965728 | Great | Trusted Information Systems Inc | McAfee LLC |
| US5610980A | 0.679 | Method and apparatus for re-initializing a processing device and a storage device | GRANT | 1997-03-11 | 1995-02-13 | 23533439 | Good | ETA Tech Corp | QUANTUM DIGITAL SOLUTIONS Corp |
| US5727061A | 0.660 | Personal access management systems | GRANT | 1998-03-10 | 1995-02-13 | 23533403 | Good | ETA Tech Corp | CYPHERCOMM Inc |
| US4281216A | 0.615 | Key management for encryption/decryption systems | GRANT | 1981-07-28 | 1979-04-02 | 21828960 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US6378072B1 | 0.610 | Cryptographic system | GRANT | 2002-04-23 | 1998-02-03 | 21784383 | Good | Compaq Computer Corp | Micro Focus LLC |
| US5933498A | 0.609 | System for controlling access and distribution of digital property | GRANT | 1999-08-03 | 1996-01-11 | 24337542 | Good | MRJ Inc | Hanger Solutions LLC |
| EP1287416B1 | 0.608 | SYSTEM AND EMBEDDED LICENSE CONTROL MECHANISM FOR THE CREATION AND DISTRIBUTION OF DIGITAL CONTENT FILES AND ENFORCEMENT OF LICENSED USE OF THE DIGITAL CONTENT FILES | GRANT | 2007-06-13 | 2000-04-07 | 24173146 | Good | Viatech Technologies Inc | Viatech Technologies Inc |
| US20050246549A1 | 0.607 | Methods and apparatus for secure distribution of software | APPLICATION | 2005-11-03 | 1999-06-09 | 35188449 | Good | Flexera Software LLC | Flexera Software LLC |
| US6971022B1 | 0.607 | Cryptographic apparatus for performing cryptography on a specified area of content data | GRANT | 2005-11-29 | 1999-06-15 | 35405413 | Good | Panasonic Corp | Panasonic Corp |
| US7380139B2 | 0.603 | Digital data recording apparatus digital data recording method and computer-readable recording medium | GRANT | 2008-05-27 | 1998-07-22 | 26515986 | Good | Panasonic Corp | Panasonic Intellectual Property Corp |
| US6832318B1 | 0.602 | Method and apparatus for secure distribution of information recorded on fixed media | GRANT | 2004-12-14 | 1999-01-15 | 33489108 | Good | Sony Corp, Sony Electronics Inc | Sony Corp, Sony Electronics Inc |
| US6000030A | 0.600 | Software fingerprinting and branding | GRANT | 1999-12-07 | 1996-06-20 | 24677819 | Good | EMC Corp | EMC Corp |
| US6647495B1 | 0.600 | Information processing apparatus and method and recording medium | GRANT | 2003-11-11 | 1997-04-30 | 14580316 | Good | Sony Corp | Sony Corp |
| USRE40405E1 | 0.599 | Method and apparatus for securing executable programs against copying | GRANT | 2008-06-24 | 1995-04-18 | 23678781 | Good | Ricoh Co Ltd | Ricoh Co Ltd |
| US7200230B2 | 0.597 | System and method for controlling and enforcing access rights to encrypted media | GRANT | 2007-04-03 | 2000-04-06 | 22720289 | Good | Macrovision Corp | Marking Object Virtualization Intelligence LLC |
| US7243236B1 | 0.596 | Systems and methods for using cryptography to protect secure and insecure computing environments | GRANT | 2007-07-10 | 1999-07-29 | 38227140 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US20110010299A1 | 0.596 | System for dynamically encrypting content for secure internet commerce and providing embedded fulfillment software | APPLICATION | 2011-01-13 | 1996-06-28 | 39810189 | Good | Arvato Digital Services LLC | Arvato Digital Services LLC |
| US5343524A | 0.594 | Intelligent security device | GRANT | 1994-08-30 | 1991-06-21 | 24886725 | Good | ||
| US4764959A | 0.593 | Single-chip microcomputer with encryptable function on program memory | GRANT | 1988-08-16 | 1983-10-14 | 26506985 | Good | Toshiba Corp | Toshiba Corp |
| US6400823B1 | 0.591 | Securely generating a computer system password by utilizing an external encryption algorithm | GRANT | 2002-06-04 | 1996-12-13 | 25075925 | Good | Compaq Computer Corp | Hewlett Packard Development Co LP |
| US5546463A | 0.589 | Pocket encrypting and authenticating communications device | GRANT | 1996-08-13 | 1994-07-12 | 23045299 | Good | Information Resource Engineering Inc | SafeNet Inc |
| US5311595A | 0.589 | Method of transferring data between computer systems using electronic cards | GRANT | 1994-05-10 | 1989-06-07 | 8115812 | Good | Kommunedata IS | Kommunedata IS |
| US5301231A | 0.587 | User defined function facility | GRANT | 1994-04-05 | 1992-02-12 | 25267410 | Good | International Business Machines Corp | International Business Machines Corp |
| US7466823B2 | 0.587 | Digital media distribution method and system | GRANT | 2008-12-16 | 2000-03-03 | 4165438 | Good | Destiny Software Productions Inc | Destiny Software Productions Inc |
| US5826011A | 0.586 | Method of metering and protecting computer software | GRANT | 1998-10-20 | 1995-12-26 | 24551466 | Good | Rainbow Technologies Inc | SafeNet Inc |
| US4562305A | 0.584 | Software cryptographic apparatus and method | GRANT | 1985-12-31 | 1982-12-22 | 23795713 | Good | International Business Machines Corp | International Business Machines Corp |
| US5933620A | 0.584 | Method and apparatus for serializing microprocessor identification numbers | GRANT | 1999-08-03 | 1996-03-28 | 24496461 | Good | Advanced Micro Devices Inc | GlobalFoundries Inc |
| US4646234A | 0.583 | Anti-piracy system using separate storage and alternate execution of selected proprietary and public portions of computer programs | GRANT | 1987-02-24 | 1984-02-29 | 24338499 | Good | Brigham Young University | Brigham Young University |
| US4433207A | 0.583 | Cryptographic decoder for computer programs | GRANT | 1984-02-21 | 1981-09-10 | 23160635 | Good | Dallas Semiconductor Corp | Dallas Semiconductor Corp |
| US5249232A | 0.582 | DATA PROCESSING SYSTEM HAVING AN ENCRYPTION DEVICE | GRANT | 1993-09-28 | 1991-06-20 | 6434390 | Good | Alcatel Lucent NV | Alcatel Lucent NV |
| US6163612A | 0.582 | Coding device decoding device and IC circuit | GRANT | 2000-12-19 | 1996-07-08 | 16036495 | Good | Kanekichi Corp | Kanekichi Corp |
| EP1168185A2 | 0.582 | Method for protecting a memory card and a memory card | GRANT | 2002-01-02 | 2000-05-08 | 8558347 | Good | Nokia Mobile Phones Ltd, Nokia Oyj | Nokia Oyj |
| US7096358B2 | 0.581 | Encrypting file system | GRANT | 2006-08-22 | 1998-05-07 | 36817006 | Good | MAZ Tech Inc | MAZ ENCRYPTION TECHNOLOGIES LLC |
| US7690039B2 | 0.581 | Method and apparatus for content protection in a secure content delivery system | GRANT | 2010-03-30 | 1998-11-16 | 32684475 | Good | Softricity Inc | Microsoft Technology Licensing LLC |
| US7827109B2 | 0.581 | Digital content management system and apparatus | GRANT | 2010-11-02 | 1994-10-27 | 27530431 | Good | Intarsia Software LLC | Piracy Protection LLC, Xylon LLC |
| US4246638A | 0.580 | Method and apparatus for controlling usage of a programmable computing machine | GRANT | 1981-01-20 | 1978-09-14 | 25478045 | Good | ||
| US6272637B1 | 0.579 | Systems and methods for protecting access to encrypted information | GRANT | 2001-08-07 | 1997-04-14 | 25273642 | Good | Dallas Semiconductor Corp | Maxim Integrated Products Inc |
| US5081675A | 0.579 | System for protection of software in memory against unauthorized use | GRANT | 1992-01-14 | 1989-11-13 | 23729174 | Good | ||
| US20080082446A1 | 0.579 | Remote Authorization for Unlocking Electronic Data System and Method | APPLICATION | 2008-04-03 | 1999-10-01 | 39262160 | Good | Greater Boston Authentication Solutions LLC | Greater Boston Authentication Solutions LLC |
| US5103476A | 0.579 | Secure system for activating personal computer software at remote locations | GRANT | 1992-04-07 | 1990-11-07 | 24443361 | Good | BETANET LLC | BETANET LLC |
| US5784459A | 0.578 | Method and apparatus for secure remote swapping of memory resident active entities | GRANT | 1998-07-21 | 1996-08-15 | 24805686 | Good | International Business Machines Corp | Lenovo PC International Ltd |
| US7730323B2 | 0.577 | Controlling database copyrights | GRANT | 2010-06-01 | 1994-04-01 | 36191195 | Good | Intarsia Software LLC | Piracy Protection LLC, Intarsia Software LLC |
| US7739511B2 | 0.576 | Systems and methods for watermarking software and other media | GRANT | 2010-06-15 | 1999-07-29 | 38987962 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US5764774A | 0.575 | Source data compression and decompression in code symbol printing and decoding | GRANT | 1998-06-09 | 1995-09-25 | 24124538 | Good | Intermec Technologies Corp | Intermec IP Corp |
| EP1237323A1 | 0.573 | DEVICE FOR REPRODUCING DATA | GRANT | 2002-09-04 | 1999-12-07 | 18393402 | Good | Fujitsu Ltd, Hitachi Ltd, Nippon Columbia Co Ltd, Sanyo Electric Co Ltd | Fujitsu Ltd, Sanyo Electric Co Ltd |
| US4888802A | 0.573 | System and method for providing for secure encryptor key management | GRANT | 1989-12-19 | 1988-06-17 | 22774172 | Good | NCR Corp | NCR Corp |
| US7707641B2 | 0.573 | Method and apparatus for secure content delivery over broadband access networks | GRANT | 2010-04-27 | 1998-11-16 | 36045753 | Good | Softricity Inc | Microsoft Technology Licensing LLC |
| US5790663A | 0.573 | Method and apparatus for software access to a microprocessor serial number | GRANT | 1998-08-04 | 1996-03-28 | 24496456 | Good | Advanced Micro Devices Inc | GlobalFoundries Inc |
| US5222133A | 0.572 | METHOD OF PROTECTING COMPUTER SOFTWARE FROM UNAUTHORIZED EXECUTION USING MULTIPLE KEYS | GRANT | 1993-06-22 | 1991-10-17 | 25113550 | Good | SafeNet Inc | SafeNet Inc |
| EP0715242A1 | 0.571 | Method and system for digital information protection | GRANT | 1996-06-05 | 1994-12-01 | 26561626 | Good | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| EP0800312A1 | 0.570 | DATA TRANSMITTER DATA TRANSMITTING METHOD DATA RECEIVER INFORMATION PROCESSOR AND INFORMATION RECORDING MEDIUM | GRANT | 1997-10-08 | 1995-10-09 | 27457220 | Good | Panasonic Corp | Panasonic Corp |
| US4977594A | 0.569 | Database usage metering and protection system and method | GRANT | 1990-12-11 | 1986-10-14 | 26977654 | Good | Electronic Publishing Resources Inc | Electronic Publishing Resources Inc |
| US5892900A | 0.569 | Systems and methods for secure transaction management and electronic rights protection | GRANT | 1999-04-06 | 1996-08-30 | 24836636 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US6871278B1 | 0.568 | Secure transactions with passive storage media | GRANT | 2005-03-22 | 2000-07-06 | 24448679 | Good | LaserCard Corp | Assa Abloy AB |
| US6073256A | 0.568 | Digital product execution control | GRANT | 2000-06-06 | 1997-04-11 | 25273279 | Good | Preview Systems Inc | SafeNet Data Security Israel Ltd |
| US9219755B2 | 0.567 | Malicious mobile code runtime monitoring system and methods | GRANT | 2015-12-22 | 1996-11-08 | 55018096 | Good | Finjan Inc | Finjan Inc |
| US10552603B2 | 0.567 | Malicious mobile code runtime monitoring system and methods | GRANT | 2020-02-04 | 2000-05-17 | 27394815 | Good | Finjan Inc | Finjan Inc |
| US5457748A | 0.567 | Method and apparatus for improved security within encrypted communication devices | GRANT | 1995-10-10 | 1992-11-30 | 25529829 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US5754761A | 0.567 | Universal sofeware key process | GRANT | 1998-05-19 | 1995-03-06 | 23577365 | Good | ||
| US4278837A | 0.566 | Crypto microprocessor for executing enciphered programs | GRANT | 1981-07-14 | 1977-10-31 | 26722203 | Good | Dallas Semiconductor Corp | Dallas Semiconductor Corp |
| US6018712A | 0.564 | Method and apparatus for remote program execution to use in computer software protection without the use of encryption | GRANT | 2000-01-25 | 1997-12-19 | 25541162 | Good | ||
| US4319079A | 0.562 | Crypto microprocessor using block cipher | GRANT | 1982-03-09 | 1979-09-13 | 26756455 | Good | Dallas Semiconductor Corp | Dallas Semiconductor Corp |
| US6801625B1 | 0.562 | Apparatus and method for stripping parity bits from an input stream | GRANT | 2004-10-05 | 1999-12-08 | 33030092 | Good | Intel Corp | Intel Corp |
| US8639625B1 | 0.562 | Systems and methods for secure transaction management and electronic rights protection | GRANT | 2014-01-28 | 1995-02-13 | 49958042 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US9141786B2 | 0.562 | Malicious mobile code runtime monitoring system and methods | GRANT | 2015-09-22 | 1996-11-08 | 36642059 | Good | Finjan Inc | Finjan Inc |
| US5235641A | 0.560 | FILE ENCRYPTION METHOD AND FILE CRYPTOGRAPHIC SYSTEM | GRANT | 1993-08-10 | 1990-03-13 | 13184996 | Good | Hitachi Ltd | Hitachi Ltd |
| US7124302B2 | 0.560 | Systems and methods for secure transaction management and electronic rights protection | GRANT | 2006-10-17 | 1995-02-13 | 46278128 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US4573119A | 0.559 | Computer software protection system | GRANT | 1986-02-25 | 1983-07-11 | 24038180 | Good | ||
| US6742177B1 | 0.559 | Method and system for secure debugging of a secure software module | GRANT | 2004-05-25 | 2000-03-31 | 32313231 | Good | International Business Machines Corp | International Business Machines Corp |
| US5790783A | 0.558 | Method and apparatus for upgrading the software lock of microprocessor | GRANT | 1998-08-04 | 1996-03-28 | 24496454 | Good | Advanced Micro Devices Inc | Advanced Micro Devices Inc |
| US4797928A | 0.558 | Encryption printed circuit board | GRANT | 1989-01-10 | 1987-01-07 | 21694897 | Good | MIU Automation | MIU INDUSTRIES Ltd 1600-609 GRANVILLE STREET |
| US6519700B1 | 0.557 | Self-protecting documents | GRANT | 2003-02-11 | 1998-10-23 | 22652901 | Good | Contentguard Holdings Inc | Contentguard Holdings Inc |
| US5388157A | 0.556 | Data security arrangements for semiconductor programmable devices | GRANT | 1995-02-07 | 1991-10-11 | 10702763 | Good | Pilkington Micro-Electronics Ltd | NXP USA Inc |
| US4827512A | 0.556 | Programmable portable electronic device | GRANT | 1989-05-02 | 1985-10-07 | 27312661 | Good | Toshiba Corp | Toshiba Corp |
| US5778071A | 0.555 | Pocket encrypting and authenticating communications device | GRANT | 1998-07-07 | 1994-07-12 | 24769678 | Good | Information Resource Engineering Inc | SafeNet Inc |
| US5615264A | 0.555 | Encrypted data package record for use in remote transaction metered data system | GRANT | 1997-03-25 | 1995-06-08 | 23939890 | Good | Wave Systems Corp | Wave Systems Corp |
| US7350085B2 | 0.555 | Tamper resistant software-mass data encoding | GRANT | 2008-03-25 | 2000-04-12 | 4165877 | Good | Cloakware Corp | Irdeto BV |
| US5815714A | 0.553 | Embedded debug commands in a source file | GRANT | 1998-09-29 | 1994-12-29 | 23441472 | Good | Hitachi America Ltd | Hitachi America Ltd |
| US5768372A | 0.552 | Method and apparatus for securing programming data of a programmable logic device | GRANT | 1998-06-16 | 1996-03-13 | 24474522 | Good | Altera Corp | Altera Corp |
| US7757101B2 | 0.552 | Data processing apparatus data processing system and data processing method therefor | GRANT | 2010-07-13 | 1999-12-20 | 18472711 | Good | Sony Corp | Sony Corp |
| US6049609A | 0.552 | Cell array providing non-persistent secret storage through a mutation cycle | GRANT | 2000-04-11 | 1997-08-06 | 25422824 | Good | Intel Corp | Intel Corp |
| US5050213A | 0.552 | Database usage metering and protection system and method | GRANT | 1991-09-17 | 1986-10-14 | 27405482 | Good | Electronic Publishing Resources Inc | Electronic Publishing Resources Inc |
| US6606385B1 | 0.551 | Data encrypting/decrypting conversion methods and apparatuses and data communication system adopting the same | GRANT | 2003-08-12 | 1997-08-07 | 16637327 | Good | Hitachi Ltd | Maxell Ltd |
| US20040117663A1 | 0.548 | METHOD FOR AUTHENTICATION OF DIGITAL CONTENT USED OR ACCESSED WITH SECONDARY DEVICES TO REDUCE UNAUTHORIZED USE OR DISTRIBUTION | APPLICATION | 2004-06-17 | 1998-06-04 | 46299908 | Good | Z4 Technologies Inc | Z4 Technologies Inc |
| US7526655B2 | 0.548 | Microprocessor configuration and method for operating a microprocessor configuration | GRANT | 2009-04-28 | 2000-01-18 | 8167654 | Good | Infineon Technologies AG | Infineon Technologies AG |
| US20010042124A1 | 0.547 | Web-based method apparatus and system for secure data storage | APPLICATION | 2001-11-15 | 2000-03-27 | 24137572 | Good | SECURIT-E-DOC Inc | SECURIT-E-DOC Inc |
| US7168065B1 | 0.547 | Method for monitoring program flow to verify execution of proper instructions by a processor | GRANT | 2007-01-23 | 1999-03-09 | 9542995 | Good | Gemplus SA | Thales DIS France SA |
| US6986063B2 | 0.547 | Method for monitoring software using encryption including digital signatures/certificates | GRANT | 2006-01-10 | 1998-06-04 | 46281942 | Good | Z4 Technologies Inc | Z4 Technologies Inc |
| US6965992B1 | 0.546 | Method and system for network security capable of doing stronger encryption with authorized devices | GRANT | 2005-11-15 | 2000-02-24 | 35266511 | Good | 3Com Corp | HP Inc, Hewlett Packard Development Co LP |
| US5191611A | 0.546 | METHOD AND APPARATUS FOR PROTECTING MATERIAL ON STORAGE MEDIA AND FOR TRANSFERRING MATERIAL ON STORAGE MEDIA TO VARIOUS RECIPIENTS | GRANT | 1993-03-02 | 1989-04-03 | 27502453 | Good | LANRALD DATA MGMT NV LLC | LANRALD DATA MGMT NV LLC |
| US4914697A | 0.546 | Cryptographic method and apparatus with electronically redefinable algorithm | GRANT | 1990-04-03 | 1988-02-01 | 22536381 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US6308270B1 | 0.545 | Validating and certifying execution of a software program with a smart card | GRANT | 2001-10-23 | 1998-02-13 | 21815854 | Good | Schlumberger Technologies Inc | Schlumberger Technologies Inc |
| US6226618B1 | 0.542 | Electronic content delivery system | GRANT | 2001-05-01 | 1998-08-13 | 22458995 | Good | International Business Machines Corp | Level 3 Communications LLC |
| US6397301B1 | 0.542 | Preventing access to secure area of a cache | GRANT | 2002-05-28 | 1999-12-29 | 23881738 | Good | Intel Corp | Intel Corp |
| US6510519B2 | 0.541 | Conditional access system | GRANT | 2003-01-21 | 1995-04-03 | 27556700 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US5610981A | 0.540 | Preboot protection for a data security system with anti-intrusion capability | GRANT | 1997-03-11 | 1992-06-04 | 26899632 | Good | Integrated Tech Of America Inc | CEDAR WEST C/O GESTINOR SERVICES, HILLIARD LP, INDEPENDENCE PLAZA Inc, LENOWITZ MARK, OFFIT ANDREW, SIMON DEBRA, Digital Privacy Inc |
| EP0455064A2 | 0.540 | Data encryption device and method for data encryption | GRANT | 1991-11-06 | 1990-05-03 | 24062621 | Good | National Semiconductor Corp | National Semiconductor Corp |
| US6105134A | 0.540 | Verification of the source of program information in a conditional access system | GRANT | 2000-08-15 | 1995-04-03 | 26733211 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US5754647A | 0.540 | Software protection apparatus and the method of protection utilizing read-write memory means having inconsistent input and output data | GRANT | 1998-05-19 | 1996-03-27 | 24503243 | Good | United Microelectronics Corp | United Microelectronics Corp |
| US6424717B1 | 0.540 | Encryption devices for use in a conditional access system | GRANT | 2002-07-23 | 1995-04-03 | 27573932 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US5343530A | 0.539 | Method for the authentication of data | GRANT | 1994-08-30 | 1991-09-03 | 9416583 | Good | Gemplus Card International SA | Gemplus SA |
| US7730324B2 | 0.538 | Method for controlling database copyrights | GRANT | 2010-06-01 | 1994-04-01 | 13271114 | Good | Intarsia Software LLC | Piracy Protection LLC |
| US5613012A | 0.538 | Tokenless identification system for authorization of electronic transactions and electronic transmissions | GRANT | 1997-03-18 | 1994-11-28 | 23758581 | Good | SmartTouch LLC | Open Invention Network LLC, Excel Innovations Inc |
| USRE42163E1 | 0.537 | Data management system | GRANT | 2011-02-22 | 1994-04-01 | 43597263 | Good | Intarsia Software LLC | Piracy Protection LLC, Intarsia Software LLC |
| US20040225894A1 | 0.537 | HARDWARE BASED METHOD FOR DIGITAL RIGHTS MANAGEMENT INCLUDING SELF ACTIVATING/SELF AUTHENTICATION SOFTWARE | APPLICATION | 2004-11-11 | 1998-06-04 | 46299910 | Good | Z4 Technologies Inc | Z4 Technologies Inc |
| US6157719A | 0.537 | Conditional access system | GRANT | 2000-12-05 | 1995-04-03 | 27555592 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US6609116B1 | 0.536 | System and method for securely updating copy-protected media | GRANT | 2003-08-19 | 1998-04-24 | 22066173 | Good | International Business Machines Corp | GlobalFoundries Inc |
| US8548166B2 | 0.536 | Method for partially encrypting program data | GRANT | 2013-10-01 | 1995-04-03 | 35375176 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US20100095131A1 | 0.536 | METHOD AND SYSTEM FOR SEAMLESS INTEGRATION OF PREPROCESSING AND POSTPROCESSING FUNCTIONS WITH AN EXISTING APPLICATION PROGRAM | APPLICATION | 2010-04-15 | 2000-05-15 | 26899321 | Good | ||
| US6266754B1 | 0.535 | Secure computing device including operating system stored in non-relocatable page of memory | GRANT | 2001-07-24 | 1998-05-29 | 26776708 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US7380137B2 | 0.535 | Content guard system for copy protection of recordable media | GRANT | 2008-05-27 | 1999-07-20 | 32823768 | Good | Intel Corp, International Business Machines Corp | Intel Corp, International Business Machines Corp |
| US20050021477A1 | 0.535 | Method and system for securely incorporating electronic information into an online purchasing application | APPLICATION | 2005-01-27 | 1997-01-29 | 34084799 | Good | CRS LLC | Hanger Solutions LLC |
| US5590199A | 0.535 | Electronic information network user authentication and authorization system | GRANT | 1996-12-31 | 1993-10-12 | 22463201 | Good | Mitre Corp | Green Wireless LLC |
| US6026235A | 0.535 | System and methods for monitoring functions in natively compiled software programs | GRANT | 2000-02-15 | 1997-05-20 | 25328719 | Good | Borland Software Corp | Borland Software Corp |
| US7152165B1 | 0.534 | Trusted storage systems and methods | GRANT | 2006-12-19 | 1999-07-16 | 36575766 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US7133845B1 | 0.534 | System and methods for secure transaction management and electronic rights protection | GRANT | 2006-11-07 | 1995-02-13 | 34831157 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US8474058B2 | 0.534 | Method and system for managing a data object so as to comply with predetermined conditions for usage | GRANT | 2013-06-25 | 1995-02-01 | 20397045 | Good | Rovi Solutions Corp | Rovi Solutions Corp |
| US20010044901A1 | 0.533 | BUBBLE-PROTECTED SYSTEM FOR AUTOMATIC DECRYPTION OF FILE DATA ON A PER-USE BASIS AND AUTOMATIC RE-ENCRYPTION | APPLICATION | 2001-11-22 | 1998-03-24 | 21948284 | Good | Symantec Corp | CA Inc |
| US7069451B1 | 0.533 | Systems and methods for secure transaction management and electronic rights protection | GRANT | 2006-06-27 | 1995-02-13 | 31999095 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US6948070B1 | 0.531 | Systems and methods for secure transaction management and electronic rights protection | GRANT | 2005-09-20 | 1995-02-13 | 32686239 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US5899987A | 0.531 | Apparatus for and method of providing user exits on an operating system platform | GRANT | 1999-05-04 | 1995-10-03 | 24147319 | Good | Memco Software Ltd | CA Software Israel Ltd |
| US6499106B1 | 0.531 | Method and apparatus for secure distribution of information recorded of fixed media | GRANT | 2002-12-24 | 1999-01-15 | 22935415 | Good | Sony Corp, Sony Electronics Inc | Sony Corp, Sony Electronics Inc |
| US4465901A | 0.530 | Crypto microprocessor that executes enciphered programs | GRANT | 1984-08-14 | 1979-06-04 | 26722202 | Good | Dallas Semiconductor Corp | Dallas Semiconductor Corp |
| US6516412B2 | 0.529 | Authorization of services in a conditional access system | GRANT | 2003-02-04 | 1995-04-03 | 27573934 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US6035380A | 0.529 | Integrated circuit | GRANT | 2000-03-07 | 1995-02-14 | 10769574 | Good | ||
| US5379433A | 0.529 | Protection against unauthorized use of software recorded on recording medium | GRANT | 1995-01-03 | 1989-05-08 | 14645874 | Good | Victor Company of Japan Ltd | Victor Company of Japan Ltd |
| US7095854B1 | 0.529 | Systems and methods for secure transaction management and electronic rights protection | GRANT | 2006-08-22 | 1995-02-13 | 36821780 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US5910987A | 0.528 | Systems and methods for secure transaction management and electronic rights protection | GRANT | 1999-06-08 | 1995-02-13 | 23532729 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US6668325B1 | 0.528 | Obfuscation techniques for enhancing software security | GRANT | 2003-12-23 | 1997-06-09 | 19926287 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US6560340B1 | 0.528 | Method and apparatus for geographically limiting service in a conditional access system | GRANT | 2003-05-06 | 1995-04-03 | 27573933 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US6519762B1 | 0.527 | Method and apparatus for restoration of a computer system hard drive | GRANT | 2003-02-11 | 1998-12-15 | 22788901 | Good | Dell USA LP | Dell USA LP |
| US5199066A | 0.527 | Method and apparatus for protecting software | GRANT | 1993-03-30 | 1989-04-18 | 23330461 | Good | Special Effects Software Inc | LOGAN ANDREW J PO BOX 314 HAVERFORD PA 19041, SPECIAL EFFECTS SOFTWARE Inc A CORP OF, Special Effects Software Inc |
| US6292568B1 | 0.527 | Representing entitlements to service in a conditional access system | GRANT | 2001-09-18 | 1966-12-16 | 27573935 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US6367017B1 | 0.527 | Apparatus and method for providing and authentication system | GRANT | 2002-04-02 | 1996-11-07 | 46276276 | Good | Litronic Inc | Imprivata Inc |
| US6823460B1 | 0.526 | Method and system for intercepting an application program interface | GRANT | 2004-11-23 | 1999-11-14 | 33428271 | Good | Networks Associates Technology Inc | McAfee LLC |
| US5144659A | 0.526 | COMPUTER FILE PROTECTION SYSTEM | GRANT | 1992-09-01 | 1989-04-19 | 23335345 | Good | Intellectual Ventures Fund 24 LLC, EMPIRICAL RESEARCH SYSTEMS Inc A NV CORP | JONES RICHARD P 7930 EAST SIDE DR NE TACOMA WA 98422 |
| US6937729B2 | 0.526 | Representing entitlements to service in a conditional access system | GRANT | 2005-08-30 | 1995-04-03 | 27577920 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US4446519A | 0.526 | Method and apparatus for providing security for computer software | GRANT | 1984-05-01 | 1981-05-26 | 23015748 | Good | Corban International Ltd | Corban International Ltd |
| US4262329A | 0.525 | Security system for data processing | GRANT | 1981-04-14 | 1978-03-27 | 25396723 | Good | COMPUTATION PLANNING Inc | COMPUTER PLANNING Inc, COMPUTATION PLANNING Inc |
| EP0989497A1 | 0.524 | Method and apparatus for protection of recorded digital data | GRANT | 2000-03-29 | 1997-09-25 | 8229855 | Good | Canal Plus SA | Canal Plus SA |
| US4352952A | 0.524 | Data security module | GRANT | 1982-10-05 | 1978-06-12 | 26825050 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| EP0008033A1 | 0.524 | Microprocessor for executing enciphered programs | GRANT | 1980-02-20 | 1978-07-24 | 25454931 | Good | ||
| US20070223688A1 | 0.523 | Architecture of an encryption circuit implementing various types of encryption algorithms simultaneously without a loss of performance | APPLICATION | 2007-09-27 | 1999-11-09 | 9551907 | Good | ||
| US6128094A | 0.523 | Printer having processor with instruction cache and compressed program store | GRANT | 2000-10-03 | 1998-07-08 | 22342127 | Good | HP Inc | Hewlett Packard Development Co LP |
| US6792528B1 | 0.522 | Method and apparatus for securing data contents of a non-volatile memory device | GRANT | 2004-09-14 | 2000-05-17 | 24296740 | Good | Open Invention Network LLC | Open Invention Network LLC |
| US5544244A | 0.522 | Method for protecting an enciphered computer object code against cryptanalysis | GRANT | 1996-08-06 | 1993-10-28 | 17489996 | Good | NEC Corp | NEC Corp |
| US5970142A | 0.521 | Configuration stream encryption | GRANT | 1999-10-19 | 1996-08-26 | 24824086 | Good | Xilinx Inc | Xilinx Inc |
| US7203842B2 | 0.521 | Method and apparatus for secure configuration of a field programmable gate array | GRANT | 2007-04-10 | 1999-12-22 | 10866706 | Good | Algotronix Ltd | Algotronix Ltd |
| US4999806A | 0.521 | Software distribution system | GRANT | 1991-03-12 | 1987-09-04 | 22238294 | Good | ||
| US6259789B1 | 0.520 | Computer implemented secret object key block cipher encryption and digital signature device and method | GRANT | 2001-07-10 | 1997-12-12 | 25534922 | Good | Safecourier Software Inc | Safecourier Software Inc |
| US6182217B1 | 0.519 | Electronic data-processing device and system | GRANT | 2001-01-30 | 1997-03-03 | 7822093 | Good | Siemens AG | Infineon Technologies AG, Siemens AG |
| US7249105B1 | 0.518 | BORE-resistant digital goods configuration and distribution methods and arrangements | GRANT | 2007-07-24 | 2000-03-14 | 24092360 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US5724425A | 0.518 | Method and apparatus for enhancing software security and distributing software | GRANT | 1998-03-03 | 1994-06-10 | 22979711 | Good | Sun Microsystems Inc | Sun Microsystems Inc |
| US7228437B2 | 0.517 | Method and system for securing local database file of local content stored on end-user system | GRANT | 2007-06-05 | 1998-08-13 | 46204170 | Good | International Business Machines Corp | International Business Machines Corp |
| US5740248A | 0.516 | Software level touchpoints for an international cryptography frameworks | GRANT | 1998-04-14 | 1996-11-12 | 25007943 | Good | Cheyenne Property Trust | Cheyenne Property Trust |
| US6327660B1 | 0.516 | Method for securing communications in a pre-boot environment | GRANT | 2001-12-04 | 1998-09-18 | 22558744 | Good | Intel Corp | Intel Corp |
| US5606609A | 0.516 | Electronic document verification system and method | GRANT | 1997-02-25 | 1994-09-19 | 23185324 | Good | Scientific Atlanta LLC | Silanis Technology Inc |
| US6611812B2 | 0.515 | Secure electronic content distribution on CDS and DVDs | GRANT | 2003-08-26 | 1998-08-13 | 23483714 | Good | International Business Machines Corp | Wistron Corp |
| US6519721B1 | 0.515 | Method and apparatus to reduce the risk of observation of program operation | GRANT | 2003-02-11 | 1999-05-19 | 23220799 | Good | Intel Corp | Intel Corp |
| US5265159A | 0.514 | Secure file erasure | GRANT | 1993-11-23 | 1992-06-23 | 25416104 | Good | Hughes Aircraft Co | Hughes Aircraft Co, DirecTV Group Inc |
| US6983371B1 | 0.514 | Super-distribution of protected digital content | GRANT | 2006-01-03 | 1998-10-22 | 35509163 | Good | International Business Machines Corp | Wistron Corp |
| US5812661A | 0.512 | Software reproduction apparatus | GRANT | 1998-09-22 | 1994-08-10 | 16734276 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US4987595A | 0.509 | Secure cryptographic processor arrangement | GRANT | 1991-01-22 | 1989-09-11 | 23602521 | Good | Motorola Solutions Inc | General Dynamics C4 Systems Inc |
| US5524072A | 0.508 | Methods and apparatus for data encryption and transmission | GRANT | 1996-06-04 | 1991-12-04 | 26322363 | Good | Enco Tone Ltd | ENCO-TONE Ltd, Enco Tone Ltd |
| US4888798A | 0.507 | Modular software security | GRANT | 1989-12-19 | 1985-04-19 | 27111114 | Good | Oms Inc | QMS Inc A DE CORP, Oms Inc |
| EP0635790A1 | 0.507 | Client/server based secure timekeeping system | GRANT | 1995-01-25 | 1993-07-22 | 22255621 | Good | International Business Machines Corp | International Business Machines Corp |
| US4306111A | 0.506 | Simple and effective public-key cryptosystem | GRANT | 1981-12-15 | 1979-05-31 | 21931532 | Good | Comsat Corp | Comsat Corp |
| US7082539B1 | 0.505 | Information processing apparatus | GRANT | 2006-07-25 | 1999-03-19 | 14235251 | Good | Hitachi Ltd | Hitachi Ltd |
| EP0694846A1 | 0.505 | Numerial scrambling method and its application to a programmable circuit | GRANT | 1996-01-31 | 1994-07-29 | 9465930 | Good | STMicroelectronics SA, SGS Thomson Microelectronics SA | STMicroelectronics SA |
| US6173403B1 | 0.503 | Method and apparatus for distributing information products | GRANT | 2001-01-09 | 1997-04-30 | 46256381 | Good | Achates Reference Publishing Inc | Achates Reference Publishing Inc |
| US6557104B2 | 0.503 | Method and apparatus for secure processing of cryptographic keys | GRANT | 2003-04-29 | 1997-05-02 | 25304733 | Good | Phoenix Technologies Ltd | Kinglite Holdings Inc |
| US7673059B2 | 0.501 | Tracking electronic content | GRANT | 2010-03-02 | 1998-11-24 | 32392298 | Good | DRM Tech LLC | Digital Reg of Texas LLC |
| EP0109504A2 | 0.501 | Protection system for storage and input/output facilities and the like | GRANT | 1984-05-30 | 1982-11-18 | 23758286 | Good | International Business Machines Corp | International Business Machines Corp |
| USRE44209E1 | 0.501 | Method and system for real-time control of document printing | GRANT | 2013-05-07 | 1998-06-14 | 48183395 | Good | Alearo Properties LLC | Kioba Processing LLC |
| EP0089876A1 | 0.499 | Method and device for the protection of software delivered by a supplyer to a user | GRANT | 1983-09-28 | 1982-03-18 | 9272137 | Good | Bull SA | Bull SA |
| US7039806B1 | 0.498 | Method and apparatus for packaging and transmitting data | GRANT | 2006-05-02 | 1999-10-01 | 36216244 | Good | Infraworks Corp | Gigamedia Access Corp, GigaTrust Corp |
| US4932054A | 0.497 | Method and apparatus for protecting computer software utilizing coded filter network in conjunction with an active coded hardware device | GRANT | 1990-06-05 | 1988-09-16 | 22927779 | Good | SafeNet Inc | SafeNet Inc |
| EP0732657A1 | 0.497 | Method and apparatus for enciphering and deciphering information | GRANT | 1996-09-18 | 1995-03-14 | 8219069 | Good | Utimaco Safeware AG | Utimaco Safeware AG |
| US7191219B2 | 0.497 | Self-destructing document and e-mail messaging system | GRANT | 2007-03-13 | 1997-06-17 | 21962098 | Good | Clarios Corp | Hanger Solutions LLC |
| US7024696B1 | 0.497 | Method and system for prevention of piracy of a given software application via a communications network | GRANT | 2006-04-04 | 2000-06-14 | 36102181 | Good | Uniloc 2017 LLC | Uniloc 2017 LLC |
| US4905277A | 0.497 | Method for enciphering and deciphering instructions in a microcomputer and a microcomputer used for effecting same | GRANT | 1990-02-27 | 1981-12-29 | 16643716 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US5742682A | 0.496 | Method of manufacturing secure boxes in a key management system | GRANT | 1998-04-21 | 1995-03-31 | 27022777 | Good | Pitney Bowes Inc | Pitney Bowes Inc |
| US6526511B1 | 0.496 | Apparatus and method for modifying microprocessor system at random and maintaining equivalent functionality in spite of modification and the same microprocessor system | GRANT | 2003-02-25 | 1997-12-25 | 27549972 | Good | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| US7017189B1 | 0.495 | System and method for activating a rendering device in a multi-level rights-management architecture | GRANT | 2006-03-21 | 2000-06-27 | 24420122 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6981262B1 | 0.495 | System and method for client interaction in a multi-level rights-management architecture | GRANT | 2005-12-27 | 2000-06-27 | 24420395 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| EP0598587A1 | 0.493 | File locking based on disk location | GRANT | 1994-05-25 | 1992-11-13 | 25523818 | Good | HP Inc | HP Inc |
| US5844497A | 0.493 | Apparatus and method for providing an authentication system | GRANT | 1998-12-01 | 1996-11-07 | 24992433 | Good | Litronic Inc | Imprivata Inc |
| US8595502B2 | 0.492 | Data management system | GRANT | 2013-11-26 | 1995-09-29 | 37525420 | Good | Intarsia Software LLC | Piracy Protection LLC |
| US5689561A | 0.492 | Computer-based trading card system and method | GRANT | 1997-11-18 | 1995-10-06 | 24154472 | Good | ||
| US4332009A | 0.491 | Memory protection system | GRANT | 1982-05-25 | 1980-01-21 | 22350532 | Good | Mostek Corp | STMicroelectronics lnc USA |
| US6389403B1 | 0.491 | Method and apparatus for uniquely identifying a customer purchase in an electronic distribution system | GRANT | 2002-05-14 | 1998-08-13 | 23571123 | Good | International Business Machines Corp | Wistron Corp |
| US6268788B1 | 0.491 | Apparatus and method for providing an authentication system based on biometrics | GRANT | 2001-07-31 | 1996-11-07 | 46256089 | Good | Litronic Inc | Imprivata Inc |
| US7406603B1 | 0.491 | Data protection systems and methods | GRANT | 2008-07-29 | 1999-08-31 | 39643385 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US7110984B1 | 0.491 | Updating usage conditions in lieu of download digital rights management protected content | GRANT | 2006-09-19 | 1998-08-13 | 36974618 | Good | International Business Machines Corp | Level 3 Communications LLC |
| US4888800A | 0.491 | Secure messaging systems | GRANT | 1989-12-19 | 1987-03-03 | 10613228 | Good | HP Inc | HP Inc |
| US5012514A | 0.490 | Hard drive security system | GRANT | 1991-04-30 | 1990-06-26 | 24168015 | Good | SCHRAMKE STEPHEN R | SCHRAMKE STEPHEN R |
| US7958366B2 | 0.489 | Information processing system | GRANT | 2011-06-07 | 1999-03-30 | 13940290 | Good | Sony Corp | Sony Corp |
| US8794516B2 | 0.489 | Data storage and access systems | GRANT | 2014-08-05 | 1999-10-25 | 10863339 | Good | Smartflash LLC | Smartflash LLC |
| US6412071B1 | 0.489 | Method for secure function execution by calling address validation | GRANT | 2002-06-25 | 1999-11-14 | 11073475 | Good | Corekt Security Systems Inc | McAfee LLC |
| US5835597A | 0.489 | Software-efficient pseudorandom function and the use thereof for decryption | GRANT | 1998-11-10 | 1993-12-06 | 22588290 | Good | International Business Machines Corp | International Business Machines Corp |
| US6009525A | 0.489 | Multi-tier electronic software distribution | GRANT | 1999-12-28 | 1997-08-29 | 25445362 | Good | Preview Systems Inc | SafeNet Data Security Israel Ltd |
| US6898038B1 | 0.488 | Method and apparatus for disc drive data security using fields in servo wedges | GRANT | 2005-05-24 | 2000-03-15 | 33422545 | Good | Seagate Technology LLC | Seagate Technology LLC |
| US4442486A | 0.488 | Protected programmable apparatus | GRANT | 1984-04-10 | 1981-11-25 | 23264914 | Good | US Philips Corp | Philips North America LLC |
| US7213005B2 | 0.488 | Digital content distribution using web broadcasting services | GRANT | 2007-05-01 | 1999-12-09 | 27038655 | Good | International Business Machines Corp | International Business Machines Corp |
| US7657759B2 | 0.488 | Method and system for copy protection of displayed data content | GRANT | 2010-02-02 | 1998-06-14 | 48094375 | Good | Finjan Software Ltd | Kioba Processing LLC |
| US5638445A | 0.487 | Blind encryption | GRANT | 1997-06-10 | 1995-09-19 | 24112143 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6959288B1 | 0.486 | Digital content preparation system | GRANT | 2005-10-25 | 1998-08-13 | 26872926 | Good | International Business Machines Corp | International Business Machines Corp |
| US6785825B2 | 0.485 | Method for securing software to decrease software piracy | GRANT | 2004-08-31 | 1998-06-04 | 22223567 | Good | Z4 Technologies Inc | Z4 Technologies Inc |
| USRE39369E1 | 0.485 | Electronic casino gaming system with improved play capacity authentication and security | GRANT | 2006-10-31 | 1995-06-29 | 46124176 | Good | International Game Technology | International Game Technology |
| US6061656A | 0.484 | Computer-based trading card system and method | GRANT | 2000-05-09 | 1995-10-06 | 46254651 | Good | ||
| US5509074A | 0.484 | Method of protecting electronically published materials using cryptographic protocols | GRANT | 1996-04-16 | 1994-01-27 | 22689562 | Good | AT&T Corp | AT&T Corp |
| US6996720B1 | 0.483 | System and method for accessing protected content in a rights-management architecture | GRANT | 2006-02-07 | 1999-12-17 | 27390117 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US5892826A | 0.483 | Data processor with flexible data encryption | GRANT | 1999-04-06 | 1996-01-30 | 24377047 | Good | Motorola Solutions Inc | Apple Inc |
| US6938170B1 | 0.482 | System and method for preventing automated crawler access to web-based data sources using a dynamic data transcoding scheme | GRANT | 2005-08-30 | 2000-07-17 | 34860576 | Good | International Business Machines Corp | International Business Machines Corp |
| US8016189B2 | 0.482 | Electronic transaction systems and methods therefor | GRANT | 2011-09-13 | 1996-12-04 | 25156177 | Good | Otomaku Properties Ltd LLC | Callahan Cellular LLC |
| US5812666A | 0.482 | Cryptographic key management and validation system | GRANT | 1998-09-22 | 1995-03-31 | 27022605 | Good | Pitney Bowes Inc | Pitney Bowes Inc |
| US5680456A | 0.482 | Method of manufacturing generic meters in a key management system | GRANT | 1997-10-21 | 1995-03-31 | 23647355 | Good | Pitney Bowes Inc | Pitney Bowes Inc |
| US6678833B1 | 0.479 | Protection of boot block data and accurate reporting of boot block contents | GRANT | 2004-01-13 | 2000-06-30 | 24436994 | Good | Intel Corp | Intel Corp |
| US4471163A | 0.479 | Software protection system | GRANT | 1984-09-11 | 1981-10-05 | 23193189 | Good | DONALD THOMAS CHRISTOPHER | CHRONOGUARD LLC, DONALD LYNN DUTY & DONALD THOMAS CLAUDE AS TRUSTEES OF CHRONOGUARD TRUST, DONALD LYNN DUTY AS TRUSTEE OF DUTY TRUST, DONALD SARAH HOLLIS |
| US5406624A | 0.478 | Data processor systems | GRANT | 1995-04-11 | 1992-09-04 | 11063996 | Good | Algorithmic Research Ltd | Algorithmic Research Ltd |
| US5940508A | 0.478 | Method and apparatus for seamless crypto rekey system | GRANT | 1999-08-17 | 1997-04-07 | 25268229 | Good | Motorola Solutions Inc | General Dynamics Mission Systems Inc |
| US6789197B1 | 0.478 | Apparatus for data copyright management system | GRANT | 2004-09-07 | 1994-10-27 | 32931483 | Good | Mitsubishi Corp | Piracy Protection LLC, Xylon LLC |
| EP0704785A2 | 0.476 | Data copyright management system | GRANT | 1996-04-03 | 1994-09-30 | 27332495 | Good | Mitsubishi Corp | Mitsubishi Corp |
| US5982889A | 0.475 | Method and apparatus for distributing information products | GRANT | 1999-11-09 | 1997-04-30 | 25296120 | Good | Achates Reference Publishing Inc | Achates Reference Publishing Inc |
| US7302415B1 | 0.475 | Data copyright management system | GRANT | 2007-11-27 | 1994-09-30 | 27617864 | Good | Intarsia LLC | Piracy Protection LLC, Intarsia LLC, Xylon LLC |
| US6190257B1 | 0.475 | Systems and method for providing security in a video game system | GRANT | 2001-02-20 | 1995-11-22 | 27409442 | Good | Nintendo Co Ltd | Nintendo Co Ltd |
| EP0600732A2 | 0.473 | Copy protection of software for use in a private branch exchange switch | GRANT | 1994-06-08 | 1992-12-03 | 25530895 | Good | American Telephone and Telegraph Co Inc, AT&T Corp | AT&T Corp |
| US7137012B1 | 0.473 | Storage medium and contents protection method using the storage medium | GRANT | 2006-11-14 | 1999-06-16 | 15896379 | Good | Toshiba Corp, Panasonic Corp | Toshiba Corp, Panasonic Corp |
| US6449717B1 | 0.473 | Data copyright management system | GRANT | 2002-09-10 | 1994-09-30 | 27477706 | Good | Mitsubishi Corp | Piracy Protection LLC, Xylon LLC |
| US5465300A | 0.473 | Secure communication setup method | GRANT | 1995-11-07 | 1993-12-27 | 22629949 | Good | Motorola Solutions Inc | General Dynamics C4 Systems Inc |
| US7240218B2 | 0.473 | Method of using a mask programmed key to securely configure a field programmable gate array | GRANT | 2007-07-03 | 2000-02-08 | 27255516 | Good | Algotronix Ltd | Algotronix Ltd |
| US6408390B1 | 0.472 | Apparatus for data copyright management system | GRANT | 2002-06-18 | 1994-10-27 | 26546399 | Good | Mitsubishi Corp | Piracy Protection LLC, Xylon LLC |
| US5661803A | 0.472 | Method of token verification in a key management system | GRANT | 1997-08-26 | 1995-03-31 | 23643464 | Good | Pitney Bowes Inc | Pitney Bowes Inc |
| US7062500B1 | 0.469 | Techniques for defining using and manipulating rights management data structures | GRANT | 2006-06-13 | 1997-02-25 | 36588994 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US7644273B1 | 0.468 | Modulation method for minimizing pirating and/or unauthorized copying and/or unauthorized access of/to data on/from data media including compact discs and digital versatile discs | GRANT | 2010-01-05 | 1998-05-20 | 22196487 | Good | Recording Industry Association of America | Recording Industry Association of America |
| US4523271A | 0.468 | Software protection method and apparatus | GRANT | 1985-06-11 | 1982-06-22 | 23544352 | Good | ||
| US20070288765A1 | 0.468 | Method and Apparatus for Secure Configuration of a Field Programmable Gate Array | APPLICATION | 2007-12-13 | 1999-12-22 | 38823321 | Good | Algotronix Ltd | Algotronix Ltd |
| US4521853A | 0.467 | Secure microprocessor/microcomputer with secured memory | GRANT | 1985-06-04 | 1982-06-30 | 23556933 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US4120030A | 0.467 | Computer software security system | GRANT | 1978-10-10 | 1977-03-11 | 25108144 | Good | Kearney and Trecker Corp | Kearney and Trecker Corp |
| US6071191A | 0.467 | Systems and methods for providing security in a video game system | GRANT | 2000-06-06 | 1995-11-22 | 25308824 | Good | Nintendo Co Ltd | Nintendo Co Ltd |
| US6188995B1 | 0.467 | Method and apparatus for enforcing software licenses | GRANT | 2001-02-13 | 1997-07-28 | 25414796 | Good | Apple Computer Inc | Apple Inc |
| US6741991B2 | 0.466 | Data management system | GRANT | 2004-05-25 | 1994-09-30 | 27577654 | Good | Mitsubishi Corp | Piracy Protection LLC, Xylon LLC |
| US6185306B1 | 0.466 | Method of secure server control of local media via a trigger through a network for local access of encrypted data on an internet webpage | GRANT | 2001-02-06 | 1995-12-07 | 27504875 | Good | HyperLOCK Tech Inc | Apple Inc |
| US8005936B2 | 0.465 | Method and system to erase data by overwriting after expiration or other condition | GRANT | 2011-08-23 | 1998-10-06 | 37526640 | Good | Ricoh Co Ltd | Ricoh Co Ltd |
| US5361359A | 0.465 | System and method for controlling the use of a computer | GRANT | 1994-11-01 | 1992-08-31 | 25469909 | Good | Trusted Information Systems Inc | McAfee LLC |
| US5590329A | 0.464 | Method and apparatus for detecting memory access errors | GRANT | 1996-12-31 | 1994-02-04 | 22708831 | Good | Nokia of America Corp | AT&T Corp, Nokia of America Corp |
| US5745678A | 0.464 | Method and system for the secured distribution of multimedia titles | GRANT | 1998-04-28 | 1994-12-13 | 23394550 | Good | International Business Machines Corp | International Business Machines Corp |
| US8176551B1 | 0.463 | Detection of observer programs and countermeasures against observer programs | GRANT | 2012-05-08 | 2000-01-27 | 46002228 | Good | Trapware Corp | Trapware Corp |
| US5615266A | 0.463 | Secure communication setup method | GRANT | 1997-03-25 | 1995-07-13 | 23995075 | Good | Motorola Solutions Inc | General Dynamics C4 Systems Inc |
| US4513174A | 0.462 | Software security method using partial fabrication of proprietary control word decoders and microinstruction memories | GRANT | 1985-04-23 | 1981-03-19 | 22926913 | Good | Standard Microsystems LLC | Standard Microsystems LLC |
| US5027396A | 0.462 | Execution protection for floppy disks | GRANT | 1991-06-25 | 1990-05-07 | 24072147 | Good | Xerox Corp | Xerox Corp |
| USRE41657E1 | 0.462 | Data management system | GRANT | 2010-09-07 | 1994-10-27 | 17399897 | Good | Intarsia Software LLC | Piracy Protection LLC, Xylon LLC |
| US20060206397A1 | 0.461 | Cryptographic methods apparatus and systems for storage media electronic right management in closed and connected appliances | APPLICATION | 2006-09-14 | 1995-02-13 | 36972194 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US5860099A | 0.461 | Stored program system with protected memory and secure signature extraction | GRANT | 1999-01-12 | 1993-05-12 | 22034300 | Good | USAR Systems Inc | USARSYS ACQUISITION CORP |
| US7107366B2 | 0.459 | System method and computer program product for uninstalling computer software | GRANT | 2006-09-12 | 1996-06-07 | 24649735 | Good | McAfee LLC | McAfee LLC |
| US7613301B2 | 0.459 | Data storage device and data storage method | GRANT | 2009-11-03 | 1998-07-16 | 16442060 | Good | Sony Corp | Sony Corp |
| US7209902B2 | 0.458 | Repository with security class and method for use thereof | GRANT | 2007-04-24 | 1994-11-23 | 23351914 | Good | Contentguard Holdings Inc | Contentguard Holdings Inc |
| US4603381A | 0.457 | Use of implant process for programming ROM type processor for encryption | GRANT | 1986-07-29 | 1982-06-30 | 23556940 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US20010029582A1 | 0.457 | Method and system for copy protection of data content | APPLICATION | 2001-10-11 | 1999-05-17 | 26978657 | Good | Alchemedia Ltd | Kioba Processing LLC, Alearo Properties LLC |
| EP0727746A2 | 0.457 | Method and system for encoding and decoding software | GRANT | 1996-08-21 | 1995-02-14 | 12173265 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US5664099A | 0.457 | Method and apparatus for establishing a protected channel between a user and a computer system | GRANT | 1997-09-02 | 1995-12-28 | 24318169 | Good | Lotus Development Corp | International Business Machines Corp |
| US5629980A | 0.457 | System for controlling the distribution and use of digital works | GRANT | 1997-05-13 | 1994-11-23 | 23348793 | Good | Xerox Corp | Contentguard Holdings Inc |
| US5599231A | 0.457 | Security systems and methods for a videographics and authentication game/program fabricating device | GRANT | 1997-02-04 | 1994-10-31 | 23299955 | Good | Nintendo Co Ltd | Nintendo Co Ltd |
| US5166886A | 0.456 | System to demonstrate and sell computer programs | GRANT | 1992-11-24 | 1989-07-31 | 27011914 | Good | ||
| US5638443A | 0.455 | System for controlling the distribution and use of composite digital works | GRANT | 1997-06-10 | 1994-11-23 | 23351987 | Good | Xerox Corp | Contentguard Holdings Inc |
| US5619576A | 0.455 | Variable-key cryptography system | GRANT | 1997-04-08 | 1994-03-14 | 22780869 | Good | ||
| US6408387B1 | 0.455 | Preventing unauthorized updates to a non-volatile memory | GRANT | 2002-06-18 | 1999-01-22 | 22887562 | Good | Intel Corp | Intel Corp |
| US6891953B1 | 0.454 | Method and system for binding enhanced software features to a persona | GRANT | 2005-05-10 | 2000-06-27 | 24420005 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6243468B1 | 0.454 | Software anti-piracy system that adapts to hardware upgrades | GRANT | 2001-06-05 | 1998-04-29 | 22095770 | Good | Microsoft Corp | Microsoft Corp |
| US7290288B2 | 0.453 | Method and system for controlling access by an authentication server to protected computer resources provided via an internet protocol network | GRANT | 2007-10-30 | 1997-06-11 | 41118015 | Good | Prism Technologies LLC | Prism Technologies LLC |
| US4926476A | 0.453 | Method and apparatus for secure execution of untrusted software | GRANT | 1990-05-15 | 1989-02-03 | 23181373 | Good | Motorola Solutions Inc | General Dynamics C4 Systems Inc |
| US4238854A | 0.453 | Cryptographic file security for single domain networks | GRANT | 1980-12-09 | 1977-12-05 | 25326215 | Good | International Business Machines Corp | International Business Machines Corp |
| US6850916B1 | 0.453 | Portable electronic charge and authorization devices and methods therefor | GRANT | 2005-02-01 | 1998-04-27 | 22988945 | Good | Esignx Corp | Callahan Cellular LLC, Esignx Corp |
| US6684199B1 | 0.452 | METHOD FOR MINIMIZING PIRATING AND/OR UNAUTHORIZED COPYING AND/OR UNAUTHORIZED ACCESS OF/TO DATA ON/FROM DATA MEDIA INCLUDING COMPACT DISCS AND DIGITAL VERSATILE DISCS AND SYSTEM AND DATA MEDIA FOR SAME | GRANT | 2004-01-27 | 1998-05-20 | 30117679 | Good | Recording Industry Association of America | Recording Industry Association of America |
| US6970849B1 | 0.451 | Inter-server communication using request with encrypted parameter | GRANT | 2005-11-29 | 1999-12-17 | 27390116 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US5351293A | 0.451 | System method and apparatus for authenticating an encrypted signal | GRANT | 1994-09-27 | 1993-02-01 | 21752371 | Good | Wave Systems Corp | CRYPTOLOGICS INTERNATIONAL Inc, Wave Systems Corp |
| US7171692B1 | 0.451 | Asynchronous communication within a server arrangement | GRANT | 2007-01-30 | 2000-06-27 | 37682032 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US4649510A | 0.450 | Methods and apparatus for the protection and control of computer programs | GRANT | 1987-03-10 | 1982-04-30 | 23473359 | Good | SCHMIDT WALTER E 8100 BALCONES DRIVE SUITE 254 AUSTIN TEXAS 78759 | SCHMIDT WALTER E 8100 BALCONES DRIVE SUITE 254 AUSTIN TEXAS 78759 |
| US7548887B1 | 0.449 | Information-signal playback system information-signal reading apparatus information-signal processing apparatus information-signal playback method information-signal reading method and information-signal processing apparatus | GRANT | 2009-06-16 | 1998-07-15 | 16421456 | Good | Sony Corp | Sony Corp |
| US5737415A | 0.449 | Data management module data reproduction management device and data reproduction management system | GRANT | 1998-04-07 | 1994-08-10 | 26523081 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US4918653A | 0.448 | Trusted path mechanism for an operating system | GRANT | 1990-04-17 | 1988-01-28 | 22530315 | Good | International Business Machines Corp | International Business Machines Corp |
| US5634012A | 0.448 | System for controlling the distribution and use of digital works having a fee reporting mechanism | GRANT | 1997-05-27 | 1994-11-23 | 23351974 | Good | Xerox Corp | Contentguard Holdings Inc |
| US7296163B2 | 0.448 | System and methods for encrypted execution of computer programs | GRANT | 2007-11-13 | 2000-02-08 | 26877122 | Good | Dartmouth College | Dartmouth College |
| US4590470A | 0.447 | User authentication system employing encryption functions | GRANT | 1986-05-20 | 1983-07-11 | 24041033 | Good | Nokia Bell Labs | Nokia Bell Labs |
| US7086087B1 | 0.447 | Information processing device card device and information processing system | GRANT | 2006-08-01 | 1999-06-24 | 16053946 | Good | Hitachi Ltd, Hitachi ULSI Systems Co Ltd | Hitachi Ltd, Hitachi ULSI Systems Co Ltd |
| US5848435A | 0.447 | Address protection circuit and method for preventing access to unauthorized address rangers | GRANT | 1998-12-08 | 1990-10-19 | 24403894 | Good | EMC Corp | EMC Corp |
| EP0005179A2 | 0.446 | Authenticating the identity of a user of an information system | GRANT | 1979-11-14 | 1978-05-05 | 25417234 | Good | International Business Machines Corp | International Business Machines Corp |
| US6453304B1 | 0.446 | Digital information recording apparatus for recording digital information | GRANT | 2002-09-17 | 1997-12-15 | 18370771 | Good | Hitachi Ltd | Maxell Ltd |
| US5850450A | 0.446 | Method and apparatus for encryption key creation | GRANT | 1998-12-15 | 1995-07-20 | 27356886 | Good | Dallas Semiconductor Corp | Dallas Semiconductor Corp |
| US7707433B2 | 0.446 | Method and system for secure computational outsourcing and disguise | GRANT | 2010-04-27 | 1998-05-14 | 28046896 | Good | Purdue Research Foundation | Purdue Research Foundation |
| US7063615B2 | 0.442 | Electronic gaming apparatus with authentication | GRANT | 2006-06-20 | 1995-06-29 | 29783401 | Good | International Game Technology | International Game Technology |
| US4555591A | 0.441 | Integrated circuit devices for secure data encryption | GRANT | 1985-11-26 | 1982-09-07 | 23646679 | Good | Nokia Bell Labs | Nokia Bell Labs |
| US8510226B2 | 0.440 | Method for synchronous encryption between a client and a licensing agent | GRANT | 2013-08-13 | 1996-02-26 | 22436337 | Good | GraphOn Corp | GraphOn Corp |
| US6064738A | 0.439 | Method for encrypting and decrypting data using chaotic maps | GRANT | 2000-05-16 | 1996-12-10 | 25068213 | Good | Research Foundation of State University of New York | Research Foundation of State University of New York |
| US7073197B2 | 0.438 | Methods and apparatus for protecting information | GRANT | 2006-07-04 | 1999-05-05 | 23181353 | Good | ShieldIP Inc | RPX Corp |
| US7797372B2 | 0.438 | Serving software applications from servers for client computers | GRANT | 2010-09-14 | 2000-03-17 | 46277625 | Good | Softricity Inc | Microsoft Technology Licensing LLC |
| US4238853A | 0.438 | Cryptographic communication security for single domain networks | GRANT | 1980-12-09 | 1977-12-05 | 25326211 | Good | International Business Machines Corp | International Business Machines Corp |
| US6202176B1 | 0.437 | Method of monitoring the correct execution of software programs | GRANT | 2001-03-13 | 1997-01-15 | 7817440 | Good | Infineon Technologies AG | Infineon Technologies AG, Siemens AG |
| US4249180A | 0.436 | Past dependent microcomputer cipher apparatus | GRANT | 1981-02-03 | 1978-09-20 | 25480218 | Good | Northern Telecom Ltd | Nortel Networks Ltd |
| US7158953B1 | 0.436 | Method and system for limiting the use of user-specific software features | GRANT | 2007-01-02 | 2000-06-27 | 24418707 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US5745570A | 0.436 | Object-oriented programming environment that provides object encapsulation via encryption | GRANT | 1998-04-28 | 1996-04-15 | 24534955 | Good | International Business Machines Corp | International Business Machines Corp |
| US5920861A | 0.435 | Techniques for defining using and manipulating rights management data structures | GRANT | 1999-07-06 | 1997-02-25 | 25192553 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US20010009580A1 | 0.435 | Information encryption device and encryption method | APPLICATION | 2001-07-26 | 2000-01-26 | 18548174 | Good | NEC Corp | NEC Corp |
| EP0601500A1 | 0.435 | Transformation of distributed data | GRANT | 1994-06-15 | 1992-12-04 | 25532087 | Good | TestDrive Corp | TestDrive Corp |
| US5953416A | 0.434 | Data processing apparatus | GRANT | 1999-09-14 | 1996-11-12 | 17888089 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US20010032312A1 | 0.434 | System and method for secure electronic digital rights management secure transaction management and content distribution | APPLICATION | 2001-10-18 | 2000-03-06 | 26882622 | Good | PLAYMEDIA SYSTEMS Inc | PLAYMEDIA SYSTEMS Inc |
| US5287407A | 0.433 | Computer software protection | GRANT | 1994-02-15 | 1990-05-31 | 8205437 | Good | International Business Machines Corp | International Business Machines Corp |
| US6523067B2 | 0.432 | System and method for using internet based caller ID for controlling access to an object stored in a computer | GRANT | 2003-02-18 | 1999-01-19 | 22879686 | Good | Intel Corp | Intel Corp |
| US7392225B2 | 0.431 | Revocation information updating method revocation information updating apparatus and storage medium | GRANT | 2008-06-24 | 1999-11-08 | 23730835 | Good | Toshiba Corp, Panasonic Corp | Toshiba Corp, Panasonic Corp |
| US6760438B1 | 0.430 | System and method for Viterbi decoding on encrypted data | GRANT | 2004-07-06 | 1999-07-01 | 32594862 | Good | Nortel Networks Ltd | Microsoft Technology Licensing LLC |
| US6516064B1 | 0.430 | Signal recording apparatus signal record medium and signal reproducing apparatus | GRANT | 2003-02-04 | 1995-07-25 | 16239195 | Good | Sony Corp | Sony Corp |
| US4850017A | 0.429 | Controlled use of cryptographic keys via generating station established control values | GRANT | 1989-07-18 | 1987-05-29 | 21998271 | Good | International Business Machines Corp | International Business Machines Corp |
| US4965804A | 0.429 | Key management for encrypted packet based networks | GRANT | 1990-10-23 | 1989-02-03 | 23181824 | Good | Racal Data Communications Inc | RACAL-GUARDATA Inc |
| US5155827A | 0.428 | Method for inhibiting an executable program in a disk operating system by replacing the program with an unexecutable program | GRANT | 1992-10-13 | 1989-03-17 | 23267252 | Good | ||
| US6446210B1 | 0.428 | Method for securing communication by selecting an encoding process using a first computer based upon ability of a second computer and deleting the process thereafter | GRANT | 2002-09-03 | 1996-12-04 | 26708297 | Good | ActivCard Ireland Ltd | ActivCard Ireland Ltd |
| US7493486B1 | 0.428 | Method and apparatus for supporting cryptographic-related activities in a public key infrastructure | GRANT | 2009-02-17 | 2000-06-09 | 40349417 | Good | Verizon Laboratories Inc | Verizon Patent and Licensing Inc |
| EP0617383A2 | 0.428 | Data storage device | GRANT | 1994-09-28 | 1993-03-20 | 10732455 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US5412718A | 0.427 | Method for utilizing medium nonuniformities to minimize unauthorized duplication of digital information | GRANT | 1995-05-02 | 1993-09-13 | 22393608 | Good | Institute of Systems Science | Kent Ridge Digital Labs, Institute of Systems Science |
| US5870474A | 0.426 | Method and apparatus for providing conditional access in connection-oriented interactive networks with a multiplicity of service providers | GRANT | 1999-02-09 | 1995-12-04 | 26677571 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US5247577A | 0.426 | Methods and apparatus for securely enabling features in highly integrated electronic circuits | GRANT | 1993-09-21 | 1992-05-13 | 25380269 | Good | Intel Corp | Intel Corp |
| US5600818A | 0.425 | Data protective microprocessor circuit for portable data carriers for example credit cards | GRANT | 1997-02-04 | 1991-05-08 | 6431312 | Good | Gesellschaft fur Automation und Organisation mbH GAO | Gesellschaft fur Automation und Organisation mbH GAO |
| US5237616A | 0.425 | Secure computer system having privileged and unprivileged memories | GRANT | 1993-08-17 | 1992-09-21 | 25486922 | Good | International Business Machines Corp | International Business Machines Corp |
| US5243654A | 0.424 | METERING SYSTEM WITH REMOTELY RESETTABLE TIME LOCKOUT | GRANT | 1993-09-07 | 1991-03-18 | 24691951 | Good | Pitney Bowes Inc | Pitney Bowes Inc |
| US5056009A | 0.424 | IC memory card incorporating software copy protection | GRANT | 1991-10-08 | 1988-08-03 | 16295055 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US4408093A | 0.423 | Cryptographic encoder-decoder | GRANT | 1983-10-04 | 1981-06-05 | 23032397 | Good | ITT Industries Inc | ITT Corp |
| US7143290B1 | 0.423 | Trusted and secure techniques systems and methods for item delivery and execution | GRANT | 2006-11-28 | 1995-02-13 | 34841925 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US7505945B2 | 0.423 | Electronic negotiable documents | GRANT | 2009-03-17 | 1995-02-08 | 27267581 | Good | Cryptomathic AS | Cryptomathic AS |
| US6205550B1 | 0.422 | Tamper resistant methods and apparatus | GRANT | 2001-03-20 | 1996-06-13 | 25450647 | Good | Intel Corp | Intel Corp |
| US6839842B1 | 0.421 | Method and apparatus for authenticating information | GRANT | 2005-01-04 | 1996-12-27 | 33541701 | Good | Intel Corp | Intel Corp |
| US5966441A | 0.420 | Method and apparatus for creating a secure autonomous network entity of a network component system | GRANT | 1999-10-12 | 1996-11-18 | 25021468 | Good | Apple Computer Inc | Apple Inc |
| US5442699A | 0.418 | Searching for patterns in encrypted data | GRANT | 1995-08-15 | 1994-11-21 | 23342182 | Good | International Business Machines Corp | Trend Micro Inc |
| US7312845B2 | 0.416 | Method of capturing and processing sensed images | GRANT | 2007-12-25 | 1997-07-12 | 25446806 | Good | Silverbrook Research Pty Ltd | Google LLC |
| US20010034838A1 | 0.416 | Control program device including the control program method for creating the control program and method for operating the control program | APPLICATION | 2001-10-25 | 2000-01-14 | 18534161 | Good | Panasonic Corp | Panasonic Corp |
| US7747154B2 | 0.416 | Method of capturing and processing sensed images | GRANT | 2010-06-29 | 1997-07-15 | 25446807 | Good | Silverbrook Research Pty Ltd | Silverbrook Research Pty Ltd |
| US4183085A | 0.416 | Protection of data processing system against unauthorized programs | GRANT | 1980-01-08 | 1976-11-18 | 10447723 | Good | International Business Machines Corp | International Business Machines Corp |
| US3806882A | 0.414 | SECURITY FOR COMPUTER SYSTEMS | GRANT | 1974-04-23 | 1971-11-22 | 10470162 | Good | ||
| US8270603B1 | 0.414 | Authentication method and system | GRANT | 2012-09-18 | 2000-05-24 | 37633536 | Good | Tracer Detection Technology Corp | CoPilot Ventures Fund III LLC |
| US8099758B2 | 0.413 | Policy based composite file system and method | GRANT | 2012-01-17 | 1999-05-12 | 37420699 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US4386234A | 0.412 | Cryptographic communication and file security using terminals | GRANT | 1983-05-31 | 1977-12-05 | 25326213 | Good | International Business Machines Corp | International Business Machines Corp |
| US5434999A | 0.411 | Safeguarded remote loading of service programs by authorizing loading in protected memory zones in a terminal | GRANT | 1995-07-18 | 1988-11-09 | 26226976 | Good | Bull CP8 | CP8 Technologies |
| US6076165A | 0.411 | Method for authenticating digital recording devices | GRANT | 2000-06-13 | 1998-01-16 | 21732513 | Good | Sony Corp, Sony Electronics Inc | Sony Corp, Sony Music Entertainment Inc, Sony Electronics Inc |
| US4868736A | 0.410 | Code operated access control system for electronic data store | GRANT | 1989-09-19 | 1986-08-16 | 10602814 | Good | RUNTIME INNOVATIONS Ltd | MODRAY Ltd 102 KELVIN CAMPUS WEST OF SCOTLAND SCIENCE PARK GLASGOW G20 0SP SCOTLAND, MODRAY Ltd 102 KELVIN CAMPUS WEST OF SCOTLAND SCIENCE PARK GLASGOW G20 OSP, RUNTIME INNOVATIONS Ltd 102 KELVIN CAMPUS WEST OF SCOTLAND SCIENCE PARK GLASGOW G20 OSP, RUNTIME INNOVATIONS Ltd |
| US5033084A | 0.410 | Method and apparatus for protection of software in an electronic system | GRANT | 1991-07-16 | 1990-04-02 | 24001094 | Good | Data I O Corp | Leannoux Properties AG LLC |
| US7159244B2 | 0.409 | Audio data playback management system and method with editing apparatus and recording medium | GRANT | 2007-01-02 | 2000-03-09 | 27061003 | Good | Panasonic Corp | Panasonic Corp |
| US5515540A | 0.407 | Microprocessor with single pin for memory wipe | GRANT | 1996-05-07 | 1990-08-27 | 24292593 | Good | Dallas Semiconductor Corp | Maxim Integrated Products Inc |
| US9363083B1 | 0.406 | Authentication method and system | GRANT | 2016-06-07 | 2000-05-24 | 36942143 | Good | CoPilot Ventures Fund III LLC | CoPilot Ventures Fund III LLC |
| US4799635A | 0.406 | System for determining authenticity of an external memory used in an information processing apparatus | GRANT | 1989-01-24 | 1985-06-24 | 26471684 | Good | Nintendo Co Ltd | Nintendo Co Ltd |
| US4227253A | 0.404 | Cryptographic communication security for multiple domain networks | GRANT | 1980-10-07 | 1977-12-05 | 25326207 | Good | International Business Machines Corp | International Business Machines Corp |
| US4168396A | 0.404 | Microprocessor for executing enciphered programs | GRANT | 1979-09-18 | 1977-10-31 | 25298493 | Good | Dallas Semiconductor Corp | Dallas Semiconductor Corp |
| US20060265337A1 | 0.403 | AUTOMATED SYSTEM FOR MANAGEMENT OF LICENSED DIGITAL ASSETS | APPLICATION | 2006-11-23 | 1996-02-26 | 37449503 | Good | GraphOn Corp | GraphOn Corp |
| US4807288A | 0.403 | Microprocessor intended particularly for executing the calculation algorithms of a public code encoding system | GRANT | 1989-02-21 | 1982-11-30 | 9279650 | Good | Bull SA, Francais Ministre des PTT, Telediffusion de France ets Public de Diffusion | ETAT FRANCAIS REPRESENTE PAR LE MINISTRE DES P T T (C N E T), Francais Ministre des PTT, Telediffusion de France ets Public de Diffusion, Bull SA |
| EP0613073A1 | 0.401 | Licence management mechanism for a computer system | GRANT | 1994-08-31 | 1993-02-23 | 10730878 | Good | Fujitsu Services Ltd | Fujitsu Services Ltd |
| US7324975B1 | 0.401 | Method for managing commands in several application files and microchip card for implementing said method | GRANT | 2008-01-29 | 1999-04-29 | 9545024 | Good | Axalto SA | Thales DIS France SA |
| US5835601A | 0.400 | File editing system and shared file editing system with file content secrecy file version management and asynchronous editing | GRANT | 1998-11-10 | 1994-03-15 | 27291911 | Good | Toshiba Corp | Toshiba Corp |
| EP0660215A2 | 0.400 | Protected programmable memory cartridge for a computer system | GRANT | 1995-06-28 | 1993-12-16 | 22612467 | Good | International Business Machines Corp | International Business Machines Corp |
| US5235642A | 0.399 | Access control subsystem and method for distributed computer system using locally cached authentication credentials | GRANT | 1993-08-10 | 1992-07-21 | 25439287 | Good | Digital Equipment Corp | Google LLC |
| US7503072B2 | 0.398 | Hardware ID to prevent software piracy | GRANT | 2009-03-10 | 1998-04-29 | 31996463 | Good | Microsoft Corp | Microsoft Corp |
| US8936196B2 | 0.398 | Camera unit incorporating program script scanner | GRANT | 2015-01-20 | 1997-07-15 | 36144289 | Good | Google LLC | Google LLC |
| US6178509B1 | 0.398 | Tamper resistant methods and apparatus | GRANT | 2001-01-23 | 1996-06-13 | 25449804 | Good | Intel Corp | Intel Corp |
| US5557518A | 0.397 | Trusted agents for open electronic commerce | GRANT | 1996-09-17 | 1994-04-28 | 22881494 | Good | Citibank NA | Citibank NA |
| US5943422A | 0.396 | Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels | GRANT | 1999-08-24 | 1996-08-12 | 24769169 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US6226747B1 | 0.396 | Method for preventing software piracy during installation from a read only storage medium | GRANT | 2001-05-01 | 1998-04-10 | 22019882 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6564253B1 | 0.396 | Content authorization system over networks including searching and reporting for unauthorized content locations | GRANT | 2003-05-13 | 1999-05-07 | 23186684 | Good | Recording Industry Association of America | Recording Industry Association of America |
| US7711795B2 | 0.396 | System method and article of manufacture for remote control and navigation of local content | GRANT | 2010-05-04 | 2000-01-20 | 23984467 | Good | Sonic Solutions LLC | Rovi Technologies Corp |
| US6834346B1 | 0.395 | Content processing system | GRANT | 2004-12-21 | 1998-07-30 | 16678626 | Good | Sony Corp | Sony Corp |
| US7415712B2 | 0.394 | Heavyweight and lightweight instrumentation | GRANT | 2008-08-19 | 1998-10-02 | 27580995 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6088797A | 0.391 | Tamper-proof electronic processing device | GRANT | 2000-07-11 | 1994-04-28 | 27398571 | Good | Citibank NA | Citibank NA |
| US6374278B1 | 0.389 | Method and apparatus for the generation of statistically random numbers | GRANT | 2002-04-16 | 1999-03-25 | 23056373 | Good | Intel Corp | Micron Technology Inc |
| US7028187B1 | 0.388 | Electronic transaction apparatus for electronic commerce | GRANT | 2006-04-11 | 1991-11-15 | 27574268 | Good | Citibank NA | Citibank NA |
| US4462076A | 0.386 | Video game cartridge recognition and security system | GRANT | 1984-07-24 | 1982-06-04 | 23519235 | Good | SMITH ENGR | SMITH ENGINEERING A SOLE PROPRIETORSHIP, SMITH ENGR |
| US5313521A | 0.386 | Key distribution protocol for file transfer in the local area network | GRANT | 1994-05-17 | 1992-04-15 | 25351939 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US6175925B1 | 0.384 | Tamper resistant player for scrambled contents | GRANT | 2001-01-16 | 1996-06-13 | 25449807 | Good | Intel Corp | Intel Corp |
| US7644439B2 | 0.384 | Timing attacks against user logon and network I/O | GRANT | 2010-01-05 | 1999-05-03 | 34192877 | Good | Cisco Technology Inc | Cisco Technology Inc |
| EP0449256A2 | 0.383 | Microcontroller having security means | GRANT | 1991-10-02 | 1990-03-27 | 13634250 | Good | Toshiba Corp, Toshiba Microelectronics Corp | Toshiba Corp, Toshiba Microelectronics Corp |
| US7797539B2 | 0.383 | Resilient cryptographic scheme | GRANT | 2010-09-14 | 1999-01-20 | 4163209 | Good | Certicom Corp | BlackBerry Ltd |
| US6173391B1 | 0.381 | Bossless architecture and digital cell technology for computer programs | GRANT | 2001-01-09 | 1995-04-07 | 27310898 | Good | Sofmap Future Design Co Ltd | Sofmap Future Design Co Ltd |
| US7444563B2 | 0.381 | Multilevel semiconductor memory write/read method thereto/therefrom and storage medium storing write/read program | GRANT | 2008-10-28 | 1996-09-18 | 34119504 | Good | Pegre Semiconductors LLC | Intellectual Ventures I LLC |
| US7515712B2 | 0.380 | Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system | GRANT | 2009-04-07 | 1997-08-01 | 46304205 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US5153921A | 0.380 | Microcomputer | GRANT | 1992-10-06 | 1990-10-09 | 17497524 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US4598170A | 0.379 | Secure microprocessor | GRANT | 1986-07-01 | 1984-05-17 | 24449515 | Good | Motorola Solutions Inc | General Dynamics Decision Systems Inc |
| US5230052A | 0.379 | APPARATUS AND METHOD FOR LOADING BIOS INTO A COMPUTER SYSTEM FROM A REMOTE STORAGE LOCATION | GRANT | 1993-07-20 | 1990-10-01 | 24363539 | Good | International Business Machines Corp | Lenovo Singapore Pte Ltd |
| US20020013907A1 | 0.379 | Method of preventing stack manipulation attacks during function calls | APPLICATION | 2002-01-31 | 1998-10-09 | 7884002 | Good | Siemens AG, International Business Machines Corp | Siemens AG, International Business Machines Corp |
| US6499035B1 | 0.376 | Licensing java objects | GRANT | 2002-12-24 | 1998-07-15 | 22361358 | Good | Microsoft Corp | Zhigu Holdings Ltd |
| US5963642A | 0.376 | Method and apparatus for secure storage of data | GRANT | 1999-10-05 | 1996-12-30 | 25110198 | Good | LONG CORNER SECURITY LLC | LONG CORNER SECURITY LLC |
| US4716586A | 0.374 | State sequence dependent read only memory | GRANT | 1987-12-29 | 1983-12-07 | 27071973 | Good | American Microsystems Holding Corp | Ami Semiconductor Inc |
| US6971027B1 | 0.374 | Computer security system | GRANT | 2005-11-29 | 1999-04-01 | 35405416 | Good | COMPROTECT Inc | Hanger Solutions LLC |
| US5625692A | 0.373 | Method and system for a public key cryptosystem having proactive robust and recoverable distributed threshold secret sharing | GRANT | 1997-04-29 | 1995-01-23 | 23485585 | Good | International Business Machines Corp | International Business Machines Corp |
| US6941383B1 | 0.373 | System method and article of manufacture for java/javascript component in a multimedia synchronization framework | GRANT | 2005-09-06 | 2000-01-20 | 34885886 | Good | Interactual Technologies Inc | Rovi Technologies Corp |
| US5014311A | 0.371 | Integrated circuit with an access-controlled data memory | GRANT | 1991-05-07 | 1985-07-03 | 6274882 | Good | Siemens AG | Siemens AG |
| US6397332B2 | 0.367 | Verification data generating apparatus data verification apparatus and storage medium for storing verification data generating program | GRANT | 2002-05-28 | 1997-07-18 | 16309700 | Good | Fuji Xerox Co Ltd | Fuji Xerox Co Ltd |
| US5710814A | 0.366 | Cryptographic unit touch point logic | GRANT | 1998-01-20 | 1996-07-23 | 24750687 | Good | Cheyenne Property Trust | Cheyenne Property Trust |
| US6769130B1 | 0.366 | System method and article of manufacture for late synchronization during the execution of a multimedia event on a plurality of client computers | GRANT | 2004-07-27 | 2000-01-20 | 32713728 | Good | Interactual Technologies Inc | Rovi Technologies Corp |
| US6870546B1 | 0.364 | Protectable expressions in objects having authorable behaviors and appearances | GRANT | 2005-03-22 | 1998-06-01 | 34280139 | Good | Autodesk Inc | Autodesk Inc |
| US4591660A | 0.364 | Common control audio decryptor | GRANT | 1986-05-27 | 1983-10-25 | 24175928 | Good | Nokia Bell Labs | Nokia Bell Labs |
| US6587948B1 | 0.360 | Recording apparatus recording medium playback apparatus recording method and playback method | GRANT | 2003-07-01 | 1998-02-13 | 12317657 | Good | Sony Corp | Sony Corp |
| US4040034A | 0.358 | DATA SECURITY SYSTEM EMPLOYING AUTOMATIC TIME STAMPING MECHANISM | GRANT | 1977-08-02 | 1975-12-04 | 24556172 | Good | International Business Machines Corp | International Business Machines Corp |
| US6070154A | 0.357 | Internet credit card security | GRANT | 2000-05-30 | 1998-11-27 | 22742904 | Good | Active Point Ltd | Active Point Ltd |
| US5220606A | 0.357 | Cryptographic system and method | GRANT | 1993-06-15 | 1992-02-10 | 25263087 | Good | ||
| US20020072830A1 | 0.357 | Dynamic classification of sections of software | APPLICATION | 2002-06-13 | 1998-10-02 | 26799767 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US7617124B1 | 0.357 | Apparatus and method for secure downloading of files | GRANT | 2009-11-10 | 1998-12-04 | 41261604 | Good | Digital River Inc | Digital River Inc |
| US5559889A | 0.357 | System and methods for data encryption using public key cryptography | GRANT | 1996-09-24 | 1995-03-31 | 23643258 | Good | International Business Machines Corp | RPX Corp |
| US5845128A | 0.355 | Automatically preserving application customizations during installation of a new software release | GRANT | 1998-12-01 | 1996-02-20 | 24414218 | Good | Oracle Corp | Oracle International Corp |
| US6307940B1 | 0.355 | Communication network for encrypting/deciphering communication text while updating encryption key a communication terminal thereof and a communication method thereof | GRANT | 2001-10-23 | 1997-06-25 | 26492308 | Good | Canon Inc | Canon Inc |
| US5812669A | 0.354 | Method and system for providing secure EDI over an open network | GRANT | 1998-09-22 | 1995-07-19 | 24004363 | Good | PREMINOS Corp | CLASSIFIELD INFORMATION Inc, HARBINGER |
| US7343495B2 | 0.353 | Information recording apparatus information reproducing apparatus and information distribution system | GRANT | 2008-03-11 | 1997-05-13 | 26352996 | Good | Toshiba Corp | Toshiba Corp |
| US7177845B2 | 0.353 | Copy detection for digitally-formatted works | GRANT | 2007-02-13 | 1999-11-29 | 34192979 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US4195200A | 0.352 | Key controlled block-cipher cryptographic system employing a multidirectional shift matrix | GRANT | 1980-03-25 | 1976-06-30 | 24815912 | Good | International Business Machines Corp | International Business Machines Corp |
| US4123747A | 0.351 | Identity verification method and apparatus | GRANT | 1978-10-31 | 1977-05-20 | 25174925 | Good | International Business Machines Corp | International Business Machines Corp |
| US6247131B1 | 0.350 | Information management method and recording medium | GRANT | 2001-06-12 | 1997-03-14 | 13174868 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US7281136B2 | 0.348 | LSI design method and verification method | GRANT | 2007-10-09 | 2000-02-14 | 18558895 | Good | Panasonic Corp | Socionext Inc |
| US5802342A | 0.347 | Image creating device loadable with external memory medium capable of storing an image creating program and created image data | GRANT | 1998-09-01 | 1992-10-13 | 26524233 | Good | Konami Holdings Corp | Konami Digital Entertainment Co Ltd |
| US4550350A | 0.341 | Secure copy method and device for stored programs | GRANT | 1985-10-29 | 1983-07-19 | 24050082 | Good | Software Distribution Newtork Inc | SOFTWARE DISTRIBUTION NETWORK Inc, Software Distribution Newtork Inc |
| US6195766B1 | 0.339 | System and method for providing soft audio and soft modem copy protection for hardware interfaces and software code | GRANT | 2001-02-27 | 1999-05-10 | 23197157 | Good | Lakestar Semi Inc | Synaptics Inc |
| US4945468A | 0.338 | Trusted path mechanism for virtual terminal environments | GRANT | 1990-07-31 | 1988-02-01 | 22536754 | Good | International Business Machines Corp | International Business Machines Corp |
| EP0062438A2 | 0.337 | Microcomputer having memory content protecting means | GRANT | 1982-10-13 | 1981-03-30 | 12724545 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US5774652A | 0.336 | Restricted access computer system | GRANT | 1998-06-30 | 1995-09-29 | 27357662 | Good | PUBLIC ACCESS TECHNOLOGYCOM Inc | PUBLIC ACCESS TECHNOLOGYCOM Inc |
| US20040098584A1 | 0.334 | Method and system for embedded automated component-level control of computer systems and other complex systems | APPLICATION | 2004-05-20 | 1998-03-25 | 32303364 | Good | Softvault Systems Inc | Softvault Systems Inc, SOFTVAULT SYSEMS Inc |
| US5261003A | 0.334 | Data communication system and method with data scrambling | GRANT | 1993-11-09 | 1991-06-13 | 15303033 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US5530751A | 0.334 | Embedded hidden identification codes in digital objects | GRANT | 1996-06-25 | 1994-06-30 | 23028731 | Good | HP Inc | Hewlett Packard Development Co LP |
| US7134137B2 | 0.332 | Providing data to applications from an access system | GRANT | 2006-11-07 | 2000-07-10 | 26911482 | Good | Oracle International Corp | Oracle International Corp |
| US5812663A | 0.332 | Data reproducing device | GRANT | 1998-09-22 | 1994-12-29 | 18342954 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US6128741A | 0.332 | Compact transparent dongle device | GRANT | 2000-10-03 | 1998-03-05 | 21881174 | Good | Rainbow Technologies Inc | SafeNet Inc |
| US5623545A | 0.330 | Automatic data generation for self-test of cryptographic hash algorithms in personal security devices | GRANT | 1997-04-22 | 1995-08-31 | 24078187 | Good | National Semiconductor Corp | National Semiconductor Corp |
| US5812762A | 0.330 | Personal computer having card read/write controller | GRANT | 1998-09-22 | 1995-03-31 | 19411357 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US6788787B1 | 0.330 | Pseudorandom number generator stream encryption method and stream encrypting communication method | GRANT | 2004-09-07 | 1999-02-25 | 26389303 | Good | Yazaki Corp | Yazaki Corp |
| US6289448B1 | 0.328 | Method apparatus and computer program product for debugging a computer's boot process | GRANT | 2001-09-11 | 1998-06-26 | 22306677 | Good | Sun Microsystems Inc | Oracle America Inc |
| US20030044017A1 | 0.328 | Data distribution | APPLICATION | 2003-03-06 | 1999-07-23 | 8241539 | Good | British Telecommunications PLC | British Telecommunications PLC |
| US5511123A | 0.325 | Symmetric cryptographic system for data encryption | GRANT | 1996-04-23 | 1994-08-04 | 23095266 | Good | Northern Telecom Ltd | Entrust Ltd |
| US5532920A | 0.323 | Data processing system and method to enforce payment of royalties when copying softcopy books | GRANT | 1996-07-02 | 1992-04-29 | 25366608 | Good | International Business Machines Corp | International Business Machines Corp |
| US6157966A | 0.323 | System and method for an ISO7816 complaint smart card to become master over a terminal | GRANT | 2000-12-05 | 1997-06-30 | 26729305 | Good | Schlumberger Malco Inc | Axalto Inc |
| US4010451A | 0.323 | DATA STRUCTURE PROCESSOR | GRANT | 1977-03-01 | 1972-10-03 | 27259890 | Good | National Research Development Corp UK | National Research Development Corp UK |
| US7133846B1 | 0.322 | Digital certificate support system methods and techniques for secure electronic commerce transaction and rights management | GRANT | 2006-11-07 | 1995-02-13 | 37036736 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US6658568B1 | 0.322 | Trusted infrastructure support system methods and techniques for secure electronic commerce transaction and rights management | GRANT | 2003-12-02 | 1995-02-13 | 32601076 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US7165174B1 | 0.321 | Trusted infrastructure support systems methods and techniques for secure electronic commerce transaction and rights management | GRANT | 2007-01-16 | 1995-02-13 | 37648853 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US3798359A | 0.320 | BLOCK CIPHER CRYPTOGRAPHIC SYSTEM | GRANT | 1974-03-19 | 1971-06-30 | 22567775 | Good | International Business Machines Corp | International Business Machines Corp |
| US5832083A | 0.320 | Method and device for utilizing data content | GRANT | 1998-11-03 | 1994-09-09 | 17239942 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US7343414B2 | 0.320 | System and method for distributing media assets to user devices and managing user rights of the media assets | GRANT | 2008-03-11 | 1999-10-05 | 27574995 | Good | ZapMedia Services Inc | Nim Sar, ZapMedia Services Inc |
| USRE30957E | 0.319 | Variant key matrix cipher system | GRANT | 1982-06-01 | 1973-10-15 | 26860525 | Good | International Business Machines Corp | International Business Machines Corp |
| EP0595288A1 | 0.317 | Security circuit for protecting data stored in memory | GRANT | 1994-05-04 | 1992-10-27 | 26540228 | Good | Toshiba Corp, Toshiba Microelectronics Corp | Toshiba Corp, Toshiba Microelectronics Corp |
| US6728773B1 | 0.315 | System for controlling and regulating distribution of intellectual properties using internet protocol framework | GRANT | 2004-04-27 | 2000-05-10 | 32108353 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US20020196938A1 | 0.315 | Method and apparatus for reproducing ciphered data | APPLICATION | 2002-12-26 | 1995-06-30 | 26490981 | Good | Sony Corp | Sony Corp |
| US3996449A | 0.315 | Operating system authenticator | GRANT | 1976-12-07 | 1975-08-25 | 24432146 | Good | International Business Machines Corp | International Business Machines Corp |
| EP1093056A1 | 0.315 | Data processor having data processing unit incorporating scramble and descramble means | GRANT | 2001-04-18 | 1999-10-13 | 17762415 | Good | NEC Corp | NEC Electronics Corp |
| US3798605A | 0.311 | CENTRALIZED VERIFICATION SYSTEM | GRANT | 1974-03-19 | 1971-06-30 | 22566995 | Good | International Business Machines Corp | International Business Machines Corp |
| US6112181A | 0.305 | Systems and methods for matching selecting narrowcasting and/or classifying based on rights management and/or other information | GRANT | 2000-08-29 | 1997-11-06 | 25509597 | Good | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US5943283A | 0.303 | Address scrambling in a semiconductor memory | GRANT | 1999-08-24 | 1997-12-05 | 25532189 | Good | INVOX Technology | SanDisk Technologies LLC |
| US6115820A | 0.302 | Determining theft of grammar code | GRANT | 2000-09-05 | 1998-06-01 | 22211955 | Good | International Business Machines Corp | International Business Machines Corp |
| US7496198B2 | 0.301 | Partial dual encrypted stream utilizing program map tables | GRANT | 2009-02-24 | 1995-04-03 | 33568640 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US7225159B2 | 0.300 | Method for authenticating and securing integrated bookstore entries | GRANT | 2007-05-29 | 2000-06-30 | 26909938 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| EP1172731A2 | 0.297 | Data processing apparatus and integrated circuit | GRANT | 2002-01-16 | 2000-07-13 | 18708672 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US7080258B2 | 0.297 | IC IC-mounted electronic device debugging method and IC debugger | GRANT | 2006-07-18 | 2000-06-30 | 18697312 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US4719566A | 0.297 | Method for entrapping unauthorized computer access | GRANT | 1988-01-12 | 1985-10-23 | 25151144 | Good | International Business Machines Corp | International Business Machines Corp |
| EP0751516A2 | 0.293 | Recording and reproduction of data and provision and collection of information | GRANT | 1997-01-02 | 1995-06-30 | 26490936 | Good | Sony Corp | Sony Corp |
| USRE44131E1 | 0.292 | Storage device having function for coping with computer virus | GRANT | 2013-04-02 | 1995-06-02 | 15172729 | Good | Fujitsu Ltd | RPX Corp |
| US5590193A | 0.292 | Method to secure the operations for accessing detachable cards for computers | GRANT | 1996-12-31 | 1994-05-05 | 9462933 | Good | Gemplus Card International SA | Thales DIS France SA |
| US6766456B1 | 0.291 | Method and system for authenticating a user of a computer system | GRANT | 2004-07-20 | 2000-02-23 | 32682653 | Good | Micron Technology Inc | Micron Technology Inc |
| US8823823B2 | 0.291 | Portable imaging device with multi-core processor and orientation sensor | GRANT | 2014-09-02 | 1997-07-15 | 34423662 | Good | Google LLC | Google LLC |
| US6957348B1 | 0.288 | Interoperability of vulnerability and intrusion detection systems | GRANT | 2005-10-18 | 2000-01-10 | 35066308 | Good | Ncircle Network Security Inc | Tripwire Inc |
| EP0722154A2 | 0.285 | Method for selling data sets| vending machine storing device and chipcard used therefor and system for selling telecommunication software therewith | GRANT | 1996-07-17 | 1994-12-22 | 6536620 | Good | Alcatel SEL AG, Alcatel Lucent NV | Alcatel SEL AG, Alcatel SA |
| US7224798B2 | 0.281 | Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system | GRANT | 2007-05-29 | 1995-04-03 | 33568005 | Good | Scientific Atlanta LLC | Cisco Technology Inc |
| US3958081A | 0.274 | Block cipher system for data security | GRANT | 1976-05-18 | 1975-02-24 | 24206358 | Good | International Business Machines Corp | International Business Machines Corp |
| US4004089A | 0.274 | Programmable cryptic device for enciphering and deciphering data | GRANT | 1977-01-18 | 1975-02-28 | 24211461 | Good | NCR Corp | NCR Corp |
| US6282291B1 | 0.273 | Method and apparatus for encrypting input bit sequence | GRANT | 2001-08-28 | 1997-03-13 | 13114524 | Good | International Business Machines Corp | International Business Machines Corp |
| US6122625A | 0.272 | Apparatus and method for secure transacting | GRANT | 2000-09-19 | 1991-11-15 | 25161747 | Good | Citibank NA | Citibank NA |
| EP0135888A2 | 0.271 | Process for preventing the execution of a programme in a computer which is not allowed to execute said programme | GRANT | 1985-04-03 | 1983-09-29 | 6210472 | Good | Siemens AG | Siemens AG |
| US4405829A | 0.270 | Cryptographic communications system and method | GRANT | 1983-09-20 | 1977-12-14 | 25333547 | Good | Massachusetts Institute of Technology | Massachusetts Institute of Technology |
| US20050132233A1 | 0.267 | Digital rights framework | APPLICATION | 2005-06-16 | 2000-05-10 | 46303738 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US7634429B2 | 0.267 | Architecture for an electronic shopping service integratable with a software application | GRANT | 2009-12-15 | 2000-06-30 | 26910084 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US5349249A | 0.261 | Programmable logic device having security elements located amongst configuration bit location to prevent unauthorized reading | GRANT | 1994-09-20 | 1993-04-07 | 21929383 | Good | Xilinx Inc | Xilinx Inc |
| US4949298A | 0.260 | Memory cartridge having a multi-memory controller with memory bank switching capabilities and data processing apparatus | GRANT | 1990-08-14 | 1986-11-19 | 17585010 | Good | Nintendo Co Ltd | Nintendo Co Ltd |
| US5325433A | 0.260 | Encryption communication system | GRANT | 1994-06-28 | 1992-04-02 | 13733627 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US3962539A | 0.255 | Product block cipher system for data security | GRANT | 1976-06-08 | 1975-02-24 | 24206352 | Good | International Business Machines Corp | International Business Machines Corp |
| US5495531A | 0.255 | Equipment which included electronics | GRANT | 1996-02-27 | 1992-07-21 | 25581911 | Good | Son Holdings Ltd of c o Celtic Trust Co Ltd | XYTING Corp |
| US5185717A | 0.255 | Tamper resistant module having logical elements arranged in multiple layers on the outer surface of a substrate to protect stored information | GRANT | 1993-02-09 | 1988-08-05 | 27327152 | Good | ||
| US4865321A | 0.244 | Memory cartridge and information processor unit using such cartridge | GRANT | 1989-09-12 | 1985-10-04 | 16778678 | Good | Nintendo Co Ltd | Nintendo Co Ltd |
| US6591229B1 | 0.241 | Metrology device with programmable smart card | GRANT | 2003-07-08 | 1998-10-09 | 22615500 | Good | Schlumberger SA | Schlumberger SA, Axalto Inc |
| USRE34161E | 0.238 | Memory cartridge and information processor unit using such cartridge | GRANT | 1993-01-12 | 1985-10-04 | 27566608 | Good | Nintendo Co Ltd | Nintendo Co Ltd |
| US6947559B2 | 0.237 | Random number generator based on turbulent convection | GRANT | 2005-09-20 | 2000-02-18 | 26879130 | Good | Kent State University | Kent State University |
| US7068786B1 | 0.234 | Dual use block/stream cipher | GRANT | 2006-06-27 | 1999-08-29 | 36600564 | Good | Intel Corp | Intel Corp |
| US20060117344A1 | 0.234 | Presentation of media content | APPLICATION | 2006-06-01 | 1999-04-21 | 27586898 | Good | Interactual Technologies Inc | Rovi Technologies Corp |
| US6912284B1 | 0.233 | Self-Authenticating cryptographic apparatus | GRANT | 2005-06-28 | 1983-06-13 | 34676566 | Good | National Security Agency | National Security Agency |
| US6920221B1 | 0.232 | Method and apparatus for protected exchange of status and secret values between a video source application and a video hardware interface | GRANT | 2005-07-19 | 1999-08-29 | 34742755 | Good | Intel Corp | Intel Corp |
| US5226136A | 0.225 | Memory cartridge bank selecting apparatus | GRANT | 1993-07-06 | 1986-05-06 | 27469192 | Good | Nintendo Co Ltd | Nintendo Co Ltd |
| US20020194130A1 | 0.222 | NETWORK SYSTEM DATA DISTRIBUTION METHOD AND RECORDING MEDIUM ON WHICH DISTRIBUTION USE DATA IS RECORDED AND WHICH CAN BE READ BY COMPUTER | APPLICATION | 2002-12-19 | 1997-09-22 | 17305789 | Good | Data Cake Baker Corp | Data Cake Baker Corp, MAEGAWA KAZUYOSHI |
| US4525777A | 0.222 | Split-cycle cache system with SCU controlled cache clearing during cache store access period | GRANT | 1985-06-25 | 1981-08-03 | 23112533 | Good | Bull HN Information Systems Inc | Bull HN Information Systems Inc |
| US5351297A | 0.221 | Method of privacy communication using elliptic curves | GRANT | 1994-09-27 | 1991-06-28 | 26485405 | Good | Panasonic Corp | Panasonic Corp |
| US5095525A | 0.216 | Memory transformation apparatus and method | GRANT | 1992-03-10 | 1989-06-26 | 23462778 | Good | Rockwell International Corp | NXP BV |
| US4926372A | 0.213 | Memory cartridge bank selecting | GRANT | 1990-05-15 | 1986-05-06 | 14373685 | Good | Nintendo Co Ltd | Nintendo Co Ltd |
| US5488664A | 0.209 | Method and apparatus for protecting visual information with printed cryptographic watermarks | GRANT | 1996-01-30 | 1994-04-22 | 22871218 | Good | Yeda Research and Development Co Ltd | Yeda Research and Development Co Ltd |
| US5272755A | 0.208 | Public key cryptosystem with an elliptic curve | GRANT | 1993-12-21 | 1991-06-28 | 15666584 | Good | Panasonic Corp | Panasonic Corp |
| US20030132299A1 | 0.184 | Communication terminal personal data transmitting system and method for transmitting data using the same | APPLICATION | 2003-07-17 | 2000-05-08 | 19668160 | Good | ||
| US8285137B2 | 0.182 | Digital camera system for simultaneous printing and magnetic recording | GRANT | 2012-10-09 | 1997-07-15 | 29999070 | Good | Silverbrook Research Pty Ltd | Google LLC |
| US6564995B1 | 0.181 | Smart card application-selection | GRANT | 2003-05-20 | 1997-09-19 | 26738690 | Good | Schlumberger Malco Inc | Axalto Inc |
| US5497423A | 0.177 | Method of implementing elliptic curve cryptosystems in digital signatures or verification and privacy communication | GRANT | 1996-03-05 | 1993-06-18 | 15427835 | Good | Panasonic Corp | Panasonic Corp |
| US6249009B1 | 0.176 | Random number generator | GRANT | 2001-06-19 | 1997-06-16 | 25369039 | Good | ||
| US20020007440A1 | 0.174 | Cache access control system | APPLICATION | 2002-01-17 | 2000-07-14 | 18709499 | Good | Hitachi Ltd | Hitachi Ltd |
| US8102568B2 | 0.172 | System for creating garments using camera and encoded card | GRANT | 2012-01-24 | 1997-07-15 | 3802317 | Good | Silverbrook Research Pty Ltd | Google LLC |
| US6571263B1 | 0.171 | Random number generating apparatus | GRANT | 2003-05-27 | 1998-08-19 | 16945347 | Good | Japan Science and Technology Agency, System Ind Labs Co Ltd | SYSTEM INDUSTRIAL LABORATORY Co Ltd, Japan Science and Technology Agency, System Ind Labs Co Ltd |
| EP0136155A2 | 0.162 | Single-chip microcomputer comprising means for preventing read-out of its internal ROM | GRANT | 1985-04-03 | 1983-09-22 | 16005545 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US6539410B1 | 0.144 | Random number generator | GRANT | 2003-03-25 | 1999-03-17 | 23036337 | Good | ||
| US8908075B2 | 0.143 | Image capture and processing integrated circuit for a camera | GRANT | 2014-12-09 | 1997-07-15 | 46300477 | Good | Google LLC | Google LLC |
| US8096642B2 | 0.112 | Inkjet nozzle with paddle layer arranged between first and second wafers | GRANT | 2012-01-17 | 1997-08-11 | 32327191 | Good | Silverbrook Research Pty Ltd | Memjet Technology Ltd |
| US8902333B2 | 0.109 | Image processing method using sensed eye position | GRANT | 2014-12-02 | 1997-07-15 | 30771558 | Good | Google LLC | Google LLC |
| US8896724B2 | 0.102 | Camera system to facilitate a cascade of imaging effects | GRANT | 2014-11-25 | 1997-07-15 | 28042532 | Good | Google LLC | Google LLC |
| WO2001098908A1 | NR | WATERMARK DETECTOR | APPLICATION | 2001-12-27 | 2000-06-16 | 8171641 | Good | ||
| WO2001026277A1 | NR | METHOD AND APPARATUS FOR PACKAGING AND TRANSMITTING DATA | APPLICATION | 2001-04-12 | 1999-10-01 | 26854164 | Good | ||
| WO2001008345A1 | NR | A COMPUTER SYSTEM AND PROCESS FOR ACCESSING AN ENCRYPTED AND SELF-DECRYPTING DIGITAL INFORMATION PRODUCT | APPLICATION | 2001-02-01 | 1999-07-22 | 22511903 | Good | ||
| WO2000072112A2 | NR | OBFUSCATION OF EXECUTABLE CODE | APPLICATION | 2000-11-30 | 1999-05-12 | 26831746 | Good | ||
| WO2000070620A1 | NR | MEMORY ARRAY WITH ADDRESS SCRAMBLING | APPLICATION | 2000-11-23 | 1999-05-12 | 7908004 | Good | ||
| WO2000057262A1 | NR | SYSTEM FOR SECURING ENTRY OF ENCRYPTED AND NON-ENCRYPTED INFORMATION ON A TOUCH SCREEN | APPLICATION | 2000-09-28 | 1999-03-24 | 23052420 | Good | ||
| WO2000055707A1 | NR | METHOD OF SECURING DATA IN A PORTABLE MASS MEMORY AGAINST UNAUTHORIZED DUPLICATION | APPLICATION | 2000-09-21 | 1999-03-18 | 7901521 | Good | ||
| WO2000026791A2 | NR | SECURE MEMORY MANAGEMENT UNIT WHICH USES MULTIPLE CRYPTOGRAPHIC ALGORITHMS | APPLICATION | 2000-05-11 | 1998-11-05 | 22685369 | Good | ||
| WO2000019321A1 | NR | METHOD FOR DISABLING DATA AND DATA PROCESSING CIRCUIT FOR CARRYING OUT SAID METHOD | APPLICATION | 2000-04-06 | 1998-09-30 | 7882968 | Good | ||
| WO1999066387A1 | NR | METHOD FOR VERIFYING THE EXECUTION OF A SOFTWARE PRODUCT | APPLICATION | 1999-12-23 | 1998-06-12 | 9522531 | Good | ||
| WO1999063697A2 | NR | PROGRAMME-CONTROLLED DEVICE | APPLICATION | 1999-12-09 | 1998-06-03 | 7869788 | Good | ||
| WO1999035582A1 | NR | A COMPUTER SOFTWARE ACTIVATION SYSTEM AND A METHOD OF AUTHENTICATING COMPUTER SOFTWARE | APPLICATION | 1999-07-15 | 1998-01-05 | 20429847 | Good | ||
| WO1998010381A1 | NR | TRUSTED INFRASTRUCTURE SUPPORT SYSTEMS METHODS AND TECHNIQUES FOR SECURE ELECTRONIC COMMERCE ELECTRONIC TRANSACTIONS COMMERCE PROCESS CONTROL AND AUTOMATION DISTRIBUTED COMPUTING AND RIGHTS MANAGEMENT | APPLICATION | 1998-03-12 | 1996-09-04 | 22255732 | Good | ||
| WO1998008323A1 | NR | PUBLIC KEY CRYPTOSYSTEM METHOD AND APPARATUS | APPLICATION | 1998-02-26 | 1996-08-19 | 21819032 | Good | ||
| WO1997044736A1 | NR | METHOD AND APPARATUS FOR TWO-LEVEL COPY PROTECTION | APPLICATION | 1997-11-27 | 1996-05-23 | 24618492 | Good | ||
| WO1997043761A2 | NR | CRYPTOGRAPHIC METHODS APPARATUS AND SYSTEMS FOR STORAGE MEDIA ELECTRONIC RIGHTS MANAGEMENT IN CLOSED AND CONNECTED APPLIANCES | APPLICATION | 1997-11-20 | 1996-05-15 | 27567573 | Good | ||
| WO1988009971A1 | NR | SECURITY SYSTEM HAVING SELECTIVE SOFTWARE PROGRAM LOCKS UTILIZING REMOVABLE PLA KEYS TO ALLOW HARDWARE SECURITY LOCK UPDATES | APPLICATION | 1988-12-15 | 1987-06-03 | 22011215 | Good | ||
| WO1985002310A1 | NR | SOFTWARE DISTRIBUTION SYSTEM | APPLICATION | 1985-05-23 | 1983-11-14 | 24199978 | Good | ||
| WO1983001848A1 | NR | MEMORY SECURITY SYSTEM | APPLICATION | 1983-05-26 | 1981-11-12 | 23247880 | Good | ||
| WO1981002480A1 | NR | MEMORY ADDRESSING APPARATUS AND METHOD | APPLICATION | 1981-09-03 | 1980-02-20 | 22405050 | Good | ||
| US3368207A | NR | File protection to i/o storage | GRANT | 1968-02-06 | 1965-05-12 | 23807213 | Good | International Business Machines Corp | International Business Machines Corp |
| NL9301880A | NR | Method and device for storing data in particular pin codes. | GRANT | 1995-06-01 | 1993-11-02 | 19863071 | Good | ||
| JPS63124153A | NR | MEMORY INFORMATION PROTECTOR | GRANT | 1988-05-27 | 1986-11-05 | 25454548 | Good | ||
| GB2367164A | NR | Securely storing and executing a program | GRANT | 2002-03-27 | 2000-05-16 | 24289048 | Good | HP Inc | HP Inc |
| GB2332606A | NR | Secure boot | GRANT | 1999-06-23 | 1996-09-30 | 24901262 | Good | Intel Corp | Intel Corp |
| GB2330932A | NR | Method and system for preventing unauthorized access to a computer program | GRANT | 1999-05-05 | 1997-10-15 | 25490685 | Good | Dell USA LP | Dell USA LP |
| GB2321728A | NR | Smart card having separate memory and scrambler for interaction therewith | GRANT | 1998-08-05 | 1997-01-30 | 10806806 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| GB2288893A | NR | Protecting a software program in a microprocessor-based controller | GRANT | 1995-11-01 | 1994-04-28 | 14567344 | Good | NEC Corp | NEC Corp |
| GB2264373B | NR | Data encryption apparatus and method | GRANT | 1995-12-20 | 1992-02-05 | 10709883 | Good | EUROLOGIC RESEARCH Ltd | EUROLOGIC RESEARCH Ltd |
| GB2247548A | NR | DATA SECURITY SYSTEM | GRANT | 1992-03-04 | 1990-08-13 | 10680558 | Good | GEC Marconi Ltd, Marconi Co Ltd | BAE Systems Electronics Ltd, BAE Systems Electronics Ltd |
| GB2205667A | NR | METHOD OF CONTROLLING THE OPERATION OF SECURITY MODULES | GRANT | 1988-12-14 | 1987-06-12 | 10618788 | Good | NCR Corp | NCR Corp |
| GB2204971A | NR | Transportable security system | GRANT | 1988-11-23 | 1987-05-19 | 10617546 | Good | General Electric Co PLC | General Electric Co PLC |
| GB2172721A | NR | Protective software | GRANT | 1986-09-24 | 1985-03-21 | 10576419 | Good | ||
| GB2140592A | NR | Memory unit comprising a memory and a protection unit | GRANT | 1984-11-28 | 1983-04-29 | 23935622 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| GB2119978A | NR | DEVICE FOR PROTECTION AGAINST THE UNAUTHORIZED READING OF PROGRAM WORDS STORED IN A MEMORY | GRANT | 1983-11-23 | 1982-05-06 | 19839688 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| GB2114331A | NR | Program storage hardware | GRANT | 1983-08-17 | 1982-01-06 | 10527481 | Good | EMI Ltd | EMI Ltd |
| GB2099616A | NR | Improvements relating to microprocessor units | GRANT | 1982-12-08 | 1981-06-03 | 10522239 | Good | JPM AUTOMATIC MACHINES Ltd | JPM AUTOMATIC MACHINES Ltd |
| FR2810425A1 | NR | Secure data transfer between processor and memory uses encryption and addition of electronic signature to prevent copying of data | GRANT | 2001-12-21 | 2000-06-20 | 8851474 | Good | GROUPE ECOLES TELECOMM | GROUPE ECOLES TELECOMM |
| FR2793050A1 | NR | METHOD FOR SECURING USER SOFTWARE FROM A SECRET PROCESSING AND STORING UNIT AND SYSTEM USING THE SAME | GRANT | 2000-11-03 | 1999-04-28 | 9545130 | Good | FINGERPRINT | FINGERPRINT |
| FR2793049A1 | NR | METHOD FOR SECURING THE USE OF SOFTWARE FROM A SECRET PROCESSING AND STORING UNIT AND SYSTEM USING THE SAME | GRANT | 2000-11-03 | 1999-04-28 | 9545129 | Good | FINGERPRINT | FINGERPRINT |
| FR2787216A1 | NR | METHOD FOR STORING AND OPERATING INFORMATION UNITS IN A SECURITY MODULE AND RELATED SECURITY MODULE | GRANT | 2000-06-16 | 1998-12-11 | 9533861 | Good | Bull CP8 | Bull CP8 |
| FR2780177A1 | NR | SOFTWARE PROTECTION SYSTEM | GRANT | 1999-12-24 | 1998-06-17 | 9527490 | Good | Schlumberger SA | Schlumberger SA |
| FR2762417A1 | NR | Security system preventing unauthorised copying of computer software from distribution disks | GRANT | 1998-10-23 | 1997-04-16 | 9506448 | Good | Gemplus Card International SA, Gemplus SA | Gemplus SA, Gemplus SA |
| FR2762111A1 | NR | Protection of computer file against illicit copying and use | GRANT | 1998-10-16 | 1997-04-09 | 9505683 | Good | Telediffusion de France ets Public de Diffusion | Telediffusion de France ets Public de Diffusion |
| FR2716550A1 | NR | Embedded encrypted bulk memory with data protection | GRANT | 1995-08-25 | 1994-02-24 | 9460378 | Good | Dassault Electronique SA, Bertin Technologies SA | Thales SA, Bertin Technologies SA |
| FR2643475A1 | NR | METHOD FOR CONTROLLING THE USE OF AN INFORMATION MEDIUM IN PARTICULAR MAGNETIC OR MAGNETO-OPTICAL AND SYSTEMS FOR ITS IMPLEMENTATION | GRANT | 1990-08-24 | 1989-02-21 | 9378987 | Good | LIVOWSKY JEAN MICHEL | LIVOWSKY JEAN MICHEL |
| FR2623640A1 | NR | Microcomputer device to counter the running of pirate programs | GRANT | 1989-05-26 | 1987-11-19 | 9356955 | Good | Dassault Electronique SA | Thales SA |
| DE4423565C1 | NR | Crypto circuit | GRANT | 1996-03-07 | 1994-07-05 | 6522303 | Good | Siemens AG | Rohde and Schwarz SIT GmbH |
| DE19755796B4 | NR | Apparatus and method for securing electronic information in a wireless communication device | GRANT | 2009-02-05 | 1996-12-31 | 25105074 | Good | Motorola Solutions Inc | Motorola Mobility LLC |
| EP0447386A2 | 0.751 | Security system for computer system | GRANT | 1991-09-18 | 1990-03-15 | 3884716 | Fair | WOW Co | WOW COMPANY |
| US5778068A | 0.682 | Personal access management system | GRANT | 1998-07-07 | 1995-02-13 | 23533132 | Fair | ETA Tech Corp | CYPHERCOMM Inc |
| US5887060A | 0.656 | Central database system for automatic software program sales | GRANT | 1999-03-23 | 1995-06-07 | 23876334 | Fair | Digital River Inc | Digital River Inc |
| US5619574A | 0.655 | Personal access management system | GRANT | 1997-04-08 | 1995-02-13 | 23533148 | Fair | ETA Tech Corp | QUANTUM DIGITAL SOLUTIONS Corp |
| US4759062A | 0.654 | Arrangement for and method of protecting private security codes from unauthorized disclosure | GRANT | 1988-07-19 | 1986-10-06 | 25435712 | Fair | INTERNATIONAL ELECTRONICS Tech CORP | INTERNATIONAL ELECTRONICS Tech CORP |
| US5689564A | 0.646 | Personal access management system | GRANT | 1997-11-18 | 1995-02-13 | 23533190 | Fair | ETA Tech Corp | CYPHERCOMM Inc |
| US6044469A | 0.602 | Software publisher or distributor configurable software security mechanism | GRANT | 2000-03-28 | 1997-08-29 | 25445191 | Fair | Preview Software | SafeNet Data Security Israel Ltd |
| US6895502B1 | 0.573 | Method and system for securely displaying and confirming request to perform operation on host computer | GRANT | 2005-05-17 | 2000-06-08 | 34573086 | Fair | Curriculum Corp | Bcs Software D/b/a Bluebonnet Consulting Services & Software LLC |
| US9053316B2 | 0.537 | Secure access computer system | GRANT | 2015-06-09 | 1996-10-28 | 24969948 | Fair | Chi Development Mgmt Ltd Iii LLC | Callahan Cellular LLC |
| US7801817B2 | 0.537 | Digital content management system and apparatus | GRANT | 2010-09-21 | 1995-10-27 | 37718738 | Fair | Intarsia Software LLC | Piracy Protection LLC, Xylon LLC |
| US6529985B1 | 0.532 | Selective interception of system calls | GRANT | 2003-03-04 | 2000-02-04 | 23983802 | Fair | Ensim Corp | Cufer Asset Ltd LLC |
| US3992702A | 0.531 | Code conversion arrangements for addresses to faulty memory locations | GRANT | 1976-11-16 | 1974-05-01 | 10121871 | Fair | Fujitsu Services Ltd | Fujitsu Services Ltd |
| US6845441B2 | 0.531 | User initiated microcode modification | GRANT | 2005-01-18 | 1998-01-13 | 19531379 | Fair | LG Semicon Co Ltd | Abov Semiconductor Co Ltd |
| US7233948B1 | 0.517 | Methods and apparatus for persistent control and protection of content | GRANT | 2007-06-19 | 1998-03-16 | 38157169 | Fair | Intertrust Technologies Corp | Intertrust Technologies Corp |
| US6834110B1 | 0.500 | Multi-tier digital TV programming for content distribution | GRANT | 2004-12-21 | 1999-12-09 | 23817218 | Fair | International Business Machines Corp | International Business Machines Corp |
| US5634046A | 0.497 | General purpose use of a stack pointer register | GRANT | 1997-05-27 | 1994-09-30 | 23229925 | Fair | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6094483A | 0.485 | Secure encryption and hiding of data and messages in images | GRANT | 2000-07-25 | 1997-08-06 | 25423610 | Fair | Research Foundation of State University of New York | RESEARCH FOUNDATION OF STATE UNIVERSITY OF NEW YORK TECHNOLOGY TRANSFER OFFICE, Research Foundation of State University of New York |
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| USRE47642E1 | 0.482 | Signal processing apparatus and methods | GRANT | 2019-10-08 | 1981-11-03 | 68070305 | Fair | Personalized Media Communications LLC | Personalized Media Communications LLC |
| US5022077A | 0.482 | Apparatus and method for preventing unauthorized access to BIOS in a personal computer system | GRANT | 1991-06-04 | 1989-08-25 | 23576925 | Fair | International Business Machines Corp | Lenovo Singapore Pte Ltd |
| US6263344B1 | 0.482 | Method and apparatus for processing hypertext objects on optical disc players | GRANT | 2001-07-17 | 1997-09-18 | 26738933 | Fair | Hanger Solutions LLC | Hanger Solutions LLC |
| US6697942B1 | 0.475 | Method for remotely managing a remote device using an electronic mail message | GRANT | 2004-02-24 | 1999-02-04 | 26816587 | Fair | EarthLink Inc | Google LLC |
| US5335277A | 0.473 | Signal processing appparatus and methods | GRANT | 1994-08-02 | 1981-11-03 | 22255280 | Fair | Personalized Mass Media Corp | Personalized Mass Media Corp |
| US5978916A | 0.469 | Method system and computer program product for updating region-dependent software using a common update module for multiple regions | GRANT | 1999-11-02 | 1997-11-25 | 25525955 | Fair | International Business Machines Corp | International Business Machines Corp |
| US6070245A | 0.463 | Application interface method and system for encryption control | GRANT | 2000-05-30 | 1997-11-25 | 25525974 | Fair | International Business Machines Corp | International Business Machines Corp |
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| US5251909A | 0.459 | Secured high throughput data channel for public broadcast system | GRANT | 1993-10-12 | 1991-05-28 | 24836715 | Fair | TCI Technology Management LLC | Time Warner Entertainment Co LP |
| US4787027A | 0.456 | System using an adapter board to couple a personal computer to a plurality of peripherals in a financial environment | GRANT | 1988-11-22 | 1985-09-20 | 25113812 | Fair | NCR Corp | NCR Corp |
| US7730169B1 | 0.456 | Business method and system for serving third party software applications | GRANT | 2010-06-01 | 1999-04-12 | 42200311 | Fair | Softricity Inc | Microsoft Technology Licensing LLC |
| USRE39370E1 | 0.453 | Electronic casino gaming system with improved play capacity authentication and security | GRANT | 2006-10-31 | 1995-06-29 | 37189417 | Fair | International Game Technology | International Game Technology |
| US5454038A | 0.450 | Electronic data interchange postage evidencing system | GRANT | 1995-09-26 | 1993-12-06 | 22581696 | Fair | Pitney Bowes Inc | Pitney Bowes Inc |
| US5784585A | 0.447 | Computer system for executing instruction stream containing mixed compressed and uncompressed instructions by automatically detecting and expanding compressed instructions | GRANT | 1998-07-21 | 1994-04-05 | 10753009 | Fair | Motorola Solutions Inc | Motorola Solutions Inc |
| US4068300A | 0.444 | Data processing system utilizing data field descriptors for processing data files | GRANT | 1978-01-10 | 1973-12-13 | 23682026 | Fair | Bull HN Information Systems Inc | Bull HN Information Systems Inc |
| US5680533A | 0.443 | Videographics program/video game fabricating system and method | GRANT | 1997-10-21 | 1994-10-31 | 23299951 | Fair | Nintendo Co Ltd | Nintendo Co Ltd |
| US5155847A | 0.439 | Method and apparatus for updating software at remote locations | GRANT | 1992-10-13 | 1988-08-03 | 22854512 | Fair | Minicom Data Corp | Dot Assets No 9 LLC |
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| US7470182B2 | 0.433 | Computerized gaming system method and apparatus | GRANT | 2008-12-30 | 2000-03-08 | 24072455 | Fair | International Game Technology | International Game Technology |
| US6453420B1 | 0.432 | System method and article of manufacture for authorizing the use of electronic content utilizing a laser-centric medium | GRANT | 2002-09-17 | 1999-04-21 | 23140598 | Fair | Research Investment Network Inc | Research Investment Network Inc |
| US6405203B1 | 0.429 | Method and program product for preventing unauthorized users from using the content of an electronic storage medium | GRANT | 2002-06-11 | 1999-04-21 | 23138819 | Fair | Research Investment Network Inc | Research Investment Network Inc |
| US6115036A | 0.429 | Video game/videographics program editing apparatus with program halt and data transfer features | GRANT | 2000-09-05 | 1994-10-31 | 23298771 | Fair | Nintendo Co Ltd | Nintendo Co Ltd, Intelligent Systems Co Ltd |
| US6665489B2 | 0.428 | System method and article of manufacturing for authorizing the use of electronic content utilizing a laser-centric medium and a network server | GRANT | 2003-12-16 | 1999-04-21 | 23139989 | Fair | Research Investment Network Inc | Research Investment Network Inc |
| US6089460A | 0.428 | Semiconductor device with security protection function ciphering and deciphering method thereof and storage medium for storing software therefor | GRANT | 2000-07-18 | 1996-09-13 | 17419130 | Fair | Nippon Steel Corp | Intellectual Ventures I LLC |
| US5680534A | 0.424 | Video game/videographics program fabricating system and method with superimpose control | GRANT | 1997-10-21 | 1994-10-31 | 23299960 | Fair | Nintendo Co Ltd | Nintendo Co Ltd |
| US5592609A | 0.420 | Video game/videographics program fabricating system and method with unit based program processing | GRANT | 1997-01-07 | 1994-10-31 | 23298749 | Fair | Nintendo Co Ltd | Nintendo Co Ltd |
| US6405265B1 | 0.418 | Device driver for accessing computer files | GRANT | 2002-06-11 | 1996-05-08 | 23130112 | Fair | Mijenix Corp | Smith Micro Software Inc |
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| US5257381A | 0.413 | Method of intercepting a global function of a network operating system and calling a monitoring function | GRANT | 1993-10-26 | 1992-02-28 | 25290338 | Fair | Intel Corp | Intel Corp |
| US7343421B1 | 0.411 | Restricting communication of selected processes to a set of specific network addresses | GRANT | 2008-03-11 | 2000-02-14 | 39155452 | Fair | Digital Asset Enterprises LLC | Longhorn Hd LLC |
| US6154877A | 0.408 | Method and apparatus for portable checkpointing using data structure metrics and conversion functions | GRANT | 2000-11-28 | 1997-07-03 | 46254555 | Fair | University of Iowa Research Foundation UIRF | University of Iowa Research Foundation UIRF |
| US6957342B2 | 0.405 | Security module security system and mobile station | GRANT | 2005-10-18 | 1998-09-04 | 8552425 | Fair | ||
| US6463449B2 | 0.405 | System for creating non-algorithmic random numbers and publishing the numbers on the internet | GRANT | 2002-10-08 | 2000-05-01 | 26896209 | Fair | ||
| US6990387B1 | 0.404 | Test system for identification and sorting of integrated circuit devices | GRANT | 2006-01-24 | 2000-05-18 | 35614117 | Fair | Intel Corp | Intel Corp |
| US7039919B1 | 0.395 | Tools and techniques for instrumenting interfaces of units of a software program | GRANT | 2006-05-02 | 1998-10-02 | 34840765 | Fair | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6161219A | 0.394 | System and method for providing checkpointing with precompile directives and supporting software to produce checkpoints independent of environment constraints | GRANT | 2000-12-12 | 1997-07-03 | 25392346 | Fair | University of Iowa Research Foundation UIRF | University of Iowa Research Foundation UIRF |
| US8037193B2 | 0.391 | Virtual token | GRANT | 2011-10-11 | 1999-12-24 | 25646234 | Fair | Telstra Corp Ltd | Telstra Corp Ltd |
| US6976258B1 | 0.390 | Providing quality of service guarantees to virtual hosts | GRANT | 2005-12-13 | 1999-11-30 | 23795883 | Fair | Ensim Corp | Hanger Solutions LLC |
| US5463778A | 0.390 | User controlled trap handler | GRANT | 1995-10-31 | 1989-11-16 | 27031643 | Fair | Texas Instruments Inc | Texas Instruments Inc |
| US5136713A | 0.390 | APPARATUS AND METHOD FOR DECREASING THE MEMORY REQUIREMENTS FOR BIOS IN A PERSONAL COMPUTER SYSTEM | GRANT | 1992-08-04 | 1989-08-25 | 23577082 | Fair | International Business Machines Corp | Lenovo Singapore Pte Ltd |
| US5299282A | 0.386 | Random tone or voice message synthesizer circuit | GRANT | 1994-03-29 | 1991-02-08 | 11938794 | Fair | NEC Corp | NEC Electronics Corp |
| US5396609A | 0.385 | Method of protecting programs and data in a computer against unauthorized access and modification by monitoring address regions | GRANT | 1995-03-07 | 1989-01-19 | 6372377 | Fair | Helmholtz Zentrum Muenchen Deutsches Forschngs fuer Gesundheit und Umwelt | Helmholtz Zentrum Muenchen Deutsches Forschngs fuer Gesundheit und Umwelt |
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| US5210875A | 0.382 | INITIAL BIOS LOAD FOR A PERSONAL COMPUTER SYSTEM | GRANT | 1993-05-11 | 1989-08-25 | 23577103 | Fair | International Business Machines Corp | Lenovo Singapore Pte Ltd |
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| US5684956A | 0.380 | Data transmission system with parallel packet delivery | GRANT | 1997-11-04 | 1994-11-14 | 23325706 | Fair | ||
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| US4506325A | 0.375 | Reflexive utilization of descriptors to reconstitute computer instructions which are Huffman-like encoded | GRANT | 1985-03-19 | 1980-03-24 | 26831149 | Fair | Sperry Corp | Sperry Corp |
| US3978454A | 0.375 | SYSTEM AND METHOD FOR PROGRAMMABLE SEQUENCE CONTROL | GRANT | 1976-08-31 | 1974-06-20 | 23911291 | Fair | Westinghouse Electric Corp | CBS Corp |
| US4064554A | 0.374 | Microcomputer with code conversion | GRANT | 1977-12-20 | 1976-08-16 | 24871189 | Fair | Texas Instruments Inc | Texas Instruments Inc |
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| US6467080B1 | 0.369 | Shared dynamically customizable user documentation | GRANT | 2002-10-15 | 1999-06-24 | 23329589 | Fair | International Business Machines Corp | International Business Machines Corp |
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| US6639996B2 | 0.357 | Image processing apparatus image processing method and computer readable memory medium | GRANT | 2003-10-28 | 1998-04-10 | 26438756 | Fair | Canon Inc | Canon Inc |
| US6381740B1 | 0.356 | Method and system for incrementally improving a program layout | GRANT | 2002-04-30 | 1997-09-16 | 25460300 | Fair | Microsoft Corp | VISION2 INTERNATIONAL Inc, Microsoft Technology Licensing LLC |
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| US6269374B1 | 0.350 | Method and apparatus for updating checksums of data structures | GRANT | 2001-07-31 | 1998-05-26 | 22185555 | Fair | International Business Machines Corp | International Business Machines Corp |
| US5065428A | 0.349 | Secure mode answering machine | GRANT | 1991-11-12 | 1990-05-29 | 24111285 | Fair | Motorola Solutions Inc | General Dynamics Decision Systems Inc |
| US6282703B1 | 0.349 | Statically linking an application process with a wrapper library | GRANT | 2001-08-28 | 1998-10-29 | 22668140 | Fair | International Business Machines Corp | International Business Machines Corp |
| US7267612B2 | 0.344 | Gaming apparatus with portrait-mode display | GRANT | 2007-09-11 | 1997-05-28 | 24717446 | Fair | International Game Technology | International Game Technology |
| USRE41227E1 | 0.344 | System for monitoring the association of digitized information having identification indicia with more than one of uniquely identified computers in a network for illegal use detection | GRANT | 2010-04-13 | 1999-01-19 | 26814163 | Fair | ||
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| EP0853315A2 | 0.336 | Cipher key and reproduction methods apparatuses systems and optical disc | GRANT | 1998-07-15 | 1997-01-10 | 27280750 | Fair | Victor Company of Japan Ltd | Victor Company of Japan Ltd |
| US6615264B1 | 0.335 | Method and apparatus for remotely administered authentication and access control | GRANT | 2003-09-02 | 1999-04-09 | 23113102 | Fair | Sun Microsystems Inc | Oracle America Inc |
| US6724921B2 | 0.332 | Method of processing image information and method of preventing forgery of certificates or the like | GRANT | 2004-04-20 | 1997-12-03 | 26488954 | Fair | Toshiba Corp | Toshiba Corp |
| US6721793B1 | 0.331 | Intellectual property over non-internet protocol systems and networks | GRANT | 2004-04-13 | 2000-05-10 | 32043575 | Fair | Cisco Technology Inc | Cisco Technology Inc |
| US5014982A | 0.329 | Memory cartridge and game apparatus using the same | GRANT | 1991-05-14 | 1987-08-26 | 16622786 | Fair | Nintendo Co Ltd | Nintendo Co Ltd |
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| US9817650B2 | 0.326 | Scheduling of a file download and search for updates | GRANT | 2017-11-14 | 1998-12-04 | 28794893 | Fair | Digital River Inc | Digital River Inc |
| US5161194A | 0.326 | SATELLITE COMMUNICATIONS SYSTEM OPERATING IN ASYNCHRONOUS MODE FOR CENTRAL-TO-TERMINAL STATION TRANSMISSION | GRANT | 1992-11-03 | 1989-07-31 | 16387520 | Fair | NEC Corp | NEC Corp |
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| US5414850A | 0.300 | System for transparently compressing data files in a computer system | GRANT | 1995-05-09 | 1991-08-23 | 25011701 | Fair | Stac Electronics Inc | HI/FN Inc |
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| EP0456916A1 | 0.291 | Integral protection system for vehicles | GRANT | 1991-11-21 | 1990-05-11 | 8267274 | Fair | Telettra Espanola SA | Telettra Espanola SA |
| US5559505A | 0.277 | Security system providing lockout for invalid access attempts | GRANT | 1996-09-24 | 1992-05-20 | 25389222 | Fair | Nokia of America Corp | Nokia of America Corp |
| US7178106B2 | 0.267 | Presentation of media content from multiple media sources | GRANT | 2007-02-13 | 1999-04-21 | 37810568 | Fair | Sonic Solutions LLC | Rovi Technologies Corp |
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| US10311094B2 | 0.264 | Synthetic audiovisual description scheme method and system for MPEG-7 | GRANT | 2019-06-04 | 1999-02-01 | 26815892 | Fair | AT&T Intellectual Property II LP | AT&T Intellectual Property II LP |
| US6763364B1 | 0.260 | Random number generator and generation method | GRANT | 2004-07-13 | 1995-02-14 | 23534882 | Fair | Quantum World Corp | Quantum World Corp |
| US5388230A | 0.257 | Parallel processor having multi-processing units either connected or bypassed in either series or parallel by the use of bus switching | GRANT | 1995-02-07 | 1988-06-23 | 15600688 | Fair | Hitachi Ltd | Renesas Electronics Corp |
| US6157559A | 0.256 | Apparatus and method for updating ROM without removing it from circuit board | GRANT | 2000-12-05 | 1997-09-23 | 19521527 | Fair | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US4051460A | 0.252 | APPARATUS FOR ACCESSING AN INFORMATION STORAGE DEVICE HAVING DEFECTIVE MEMORY CELLS | GRANT | 1977-09-27 | 1975-02-01 | 11839344 | Fair | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| US8866923B2 | 0.250 | Modular camera and printer | GRANT | 2014-10-21 | 1999-05-25 | 3814761 | Fair | Google LLC | Google LLC |
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| US6731758B1 | 0.248 | Digital video content transmission ciphering and deciphering method and apparatus | GRANT | 2004-05-04 | 1999-08-29 | 23522062 | Fair | Intel Corp | Intel Corp |
| US7058597B1 | 0.247 | Apparatus and method for adaptive fraud screening for electronic commerce transactions | GRANT | 2006-06-06 | 1998-12-04 | 34742610 | Fair | Digital River Inc | Digital River Inc |
| US4368357A | 0.243 | Bypass apparatus for use in secure communication systems | GRANT | 1983-01-11 | 1980-11-14 | 22767939 | Fair | International Telephone and Telegraph Corp | National Security Agency, ITT Corp |
| US3909802A | 0.235 | Diagnostic maintenance and test apparatus | GRANT | 1975-09-30 | 1974-04-08 | 23822636 | Fair | Bull HN Information Systems Inc | Bull HN Information Systems Inc |
| US4882683A | 0.234 | Cellular addressing permutation bit map raster graphics architecture | GRANT | 1989-11-21 | 1987-03-16 | 21829549 | Fair | Fairchild Semiconductor Corp | National Semiconductor Corp |
| US5521722A | 0.230 | Image handling facilitating computer aided design and manufacture of documents | GRANT | 1996-05-28 | 1990-01-31 | 26296573 | Fair | De la Rue Co PLC | De la Rue International Ltd |
| US6771649B1 | 0.219 | Middle approach to asynchronous and backward-compatible detection and prevention of ARP cache poisoning | GRANT | 2004-08-03 | 1999-12-06 | 32772101 | Fair | AT&T Corp | AT&T Corp |
| US7073198B1 | 0.208 | Method and system for detecting a vulnerability in a network | GRANT | 2006-07-04 | 1999-08-26 | 36613932 | Fair | Ncircle Network Security Inc | Tripwire Inc |
| US6714955B2 | 0.208 | High speed random number generation | GRANT | 2004-03-30 | 1999-12-21 | 9553532 | Fair | Bull SA | Bull SA |
| US5379243A | 0.189 | Method and apparatus for performing finite field division | GRANT | 1995-01-03 | 1992-08-31 | 25470917 | Fair | Comstream Corp | Entropic Communications LLC |
| US4860128A | 0.185 | Recordable data device having identification symbols formed thereon and cooperating data processing system having registering symbols | GRANT | 1989-08-22 | 1985-04-24 | 26402426 | Fair | Nintendo Co Ltd | Nintendo Co Ltd |
| EP0766472A2 | 0.185 | Method for using electronic information services ensuring the anonymity of users towards companies delivering such services | GRANT | 1997-04-02 | 1995-09-26 | 7773136 | Fair | Siemens AG | Siemens AG |
| US6678803B2 | 0.183 | Method and device to use memory access request tags | GRANT | 2004-01-13 | 1999-11-03 | 23717195 | Fair | Micron Technology Inc | Micron Technology Inc |
| US5784581A | 0.182 | Apparatus and method for operating a peripheral device as either a master device or a slave device | GRANT | 1998-07-21 | 1996-05-03 | 24576333 | Fair | Intel Corp | Intel Corp |
| US3943492A | 0.172 | Plural storage system | GRANT | 1976-03-09 | 1972-08-17 | 26960837 | Fair | Oak Industries Inc | OCI COMMUNICATIONS Inc |
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| US7021216B1 | 0.163 | Method of and system for controlling a blasting network | GRANT | 2006-04-04 | 1999-04-20 | 25587682 | Fair | Orica Explosives Technology Pty Ltd | Orica Explosives Technology Pty Ltd |
| US5268899A | 0.126 | Apparatus for generating pseudo-random numbers in a communication system or other system involving a shared resource | GRANT | 1993-12-07 | 1991-10-17 | 25113774 | Fair | 3Com Corp | HP Inc |
| US4056809A | 0.107 | Fast table lookup apparatus for reading memory | GRANT | 1977-11-01 | 1975-04-30 | 24291431 | Fair | DATA FLO CORP | DATA FLO CORP |
| US6377104B2 | 0.093 | Static clock pulse generator and display | GRANT | 2002-04-23 | 2000-04-04 | 9889034 | Fair | Sharp Corp | Sharp Corp |
| US6240432B1 | 0.089 | Enhanced random number generator | GRANT | 2001-05-29 | 1998-12-28 | 22831571 | Fair | Vanguard International Semiconductor Corp | Taiwan Semiconductor Manufacturing Co TSMC Ltd |
| US6542014B1 | 0.087 | Thermal noise random pulse generator and random number generator | GRANT | 2003-04-01 | 1999-11-02 | 18021449 | Fair | Leisure Electronics Tech | Leisure Electronics Tech Co Ltd, Leisure Electronics Tech |
| US3920894A | 0.085 | PSEUDO-RANDOM PARALLEL WORD GENERATOR | GRANT | 1975-11-18 | 1974-03-11 | 23787061 | Fair | Nokia Bell Labs | Nokia Bell Labs |
| US4641102A | 0.079 | Random number generator | GRANT | 1987-02-03 | 1984-08-17 | 24574379 | Fair | Nokia Bell Labs | Nokia Bell Labs |
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| WO1998043438A1 | NR | ELECTRONIC PROJECTION CINEMA VIA SATELLITE | APPLICATION | 1998-10-01 | 1997-03-21 | 8298717 | Fair | ||
| WO1997042762A2 | NR | SECURITY DEVICE MANAGED ACCESS TO INFORMATION | APPLICATION | 1997-11-13 | 1996-05-06 | 8223951 | Fair | ||
| WO1997006637A1 | NR | HIGH DEFINITION TV MOTION PICTURE DISTRIBUTION NETWORK | APPLICATION | 1997-02-20 | 1995-08-04 | 11403521 | Fair | ||
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| JPS63184853A | NR | PORTABLE ELECTRONIC APPARATUS | GRANT | 1988-07-30 | 1987-01-28 | 11946373 | Fair | ||
| JPS59229646A | NR | WITHOUT-PERMISSION USE INHIBITING DEVICE OF CODED PROGRAM | GRANT | 1984-12-24 | 1983-06-10 | 14366663 | Fair | ||
| JPS59212954A | NR | PROGRAM ROBBERY PREVENTING DEVICE FOR ELECTRONIC CIRCUIT | GRANT | 1984-12-01 | 1983-05-18 | 13936772 | Fair | ||
| JPH04287124A | NR | METHOD AND DEVICE FOR INHIBITING SOFTWARE FROM BEING USED WITHOUT PERMISSION AT COMPUTER SYSTEM | GRANT | 1992-10-12 | 1991-03-15 | 13622132 | Fair | ||
| JPH04268924A | NR | METHOD FOR PROTECTING REVERSE ASSEMBLING | GRANT | 1992-09-24 | 1991-02-25 | 12938106 | Fair | ||
| JPH04101529A | NR | ENCIPHERED COMMUNICATION SYSTEM | GRANT | 1992-04-03 | 1990-08-21 | 16714390 | Fair | ||
| JPH03148734A | NR | CACHE MEMORY CONTROLLER | GRANT | 1991-06-25 | 1989-11-06 | 17716594 | Fair | ||
| JPH02155034A | NR | COMPUTER WITH SECURITY FUNCTION | GRANT | 1990-06-14 | 1988-12-08 | 17984656 | Fair | ||
| GB2230362A | NR | Identifying processors | GRANT | 1990-10-17 | 1989-04-14 | 10655044 | Fair | Smiths Group PLC | Smiths Group PLC |
| GB2135175A | NR | A frame for a piece of furniture set of shelves inside fittings or similar constructions | GRANT | 1984-08-30 | 1983-02-15 | 26223288 | Fair | ||
| GB2129586A | NR | Improvements in or relating to memory systems | GRANT | 1984-05-16 | 1982-11-01 | 26284275 | Fair | ||
| FR2771828A1 | NR | Error confinement in multitasking computer system | GRANT | 1999-06-04 | 1997-12-03 | 9514105 | Fair | Thales Avionics SAS | Thales Avionics SAS |
| FR2553541A1 | NR | DEVICE AND METHOD FOR QUICK AND STABLE INFORMATION STORAGE | GRANT | 1985-04-19 | 1983-10-17 | 9293218 | Fair | Institut National de Recherche en Informatique et en Automatique INRIA | Institut National de Recherche en Informatique et en Automatique INRIA |
| CN1085359C | NR | Encrypted method and device for application program | GRANT | 2002-05-22 | 1996-12-11 | 5127229 | Fair | ||
| CN100348052C | NR | Source coding to provide for robust error recovery during transmission losses | GRANT | 2007-11-07 | 1997-10-23 | 27567286 | Fair |
 |  |
Validity Report Full Report
US7162735B2 — Digital data protection arrangement Priority Date: 2000-07-18, Publication Date: 2007-01-09, Current Assignee: Simplex Patents CorpReport Generated: 2020-08-01