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Your search returned 212 patents.
( 705/58 in Current US Classification )
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Patent IDTitleDate Filed
7028891 System and method for confirming transaction or billing communications November 3, 2003
7028012 System and method for ordering customized identification documents via a network January 31, 2001
7028011 Hybrid optical recording disc with copy protection September 10, 1999
7028009 Method and apparatus for distributing enforceable property rights June 3, 2002
7020634 Certification and unique electronic seals for online entities August 19, 2003
6999948 Memory card August 9, 2000
6999587 Information recording/reproducing system February 7, 2000
6993131 Method and system for managing rights in digital information over a network September 12, 2000
6986063 Method for monitoring software using encryption including digital signatures/certificates February 4, 2003
6980972 Method and system for controlling and auditing content/service systems August 9, 2000
6980971 Copyright management apparatus, copyrighted-work distribution apparatus, and copyrighted-work distribution and receiving system March 17, 2005
6980962 Electronic commerce transactions within a marketing system that may contain a membership buying opportunity February 29, 2000
6978381 Enhancement to a system for automated generation of file access control system commands October 26, 1999
6978256 Method and apparatus for selling digital contents, processing program thereof and recording medium for the program September 17, 2002
6978021 Encryption method for distribution of data September 18, 2000
6973445 Demarcated digital content and method for creating and processing demarcated digital works May 31, 2001
6968059 Video information generating apparatus, video communication terminal, video distribution server, and video information system August 10, 2000
6963859 Content rendering repository January 16, 2003
6957195 Player-centric method and apparatus for creating, distributing, and consuming content September 18, 1999
6957194 Method for printing digital works June 5, 2003
6952685 Music distribution system and associated antipiracy protection January 20, 2000
6950938 Service identification tag and communications system using the same October 10, 2000
6948070 Systems and methods for secure transaction management and electronic rights protection October 30, 2000
6947909 Distribution, recognition and accountability system for intellectual and copy written properties in digital media's May 12, 2000
6928423 Copyright management apparatus, copyrighted-work distribution apparatus, and copyrighted-work distribution and receiving system July 16, 1999
6925475 Process and apparatus for management of multimedia databases October 11, 2002
6920436 Digital work structure February 6, 2003
6912652 Method and apparatus for imprinting ID information into a digital content and for reading out the same May 4, 1999
6909784 Recording apparatus and recording method of electronic watermark June 20, 2000
6898578 Recording apparatus for recording digital information August 2, 2002
6898577 Methods and systems for single sign-on authentication in a multi-vendor e-commerce environment and directory-authenticated bank drafts March 18, 1999
6898576 Method and apparatus for executing code in accordance with usage rights December 19, 2002
6889211 Method and system for distributing multimedia data with management information July 28, 2000
6889209 Method and apparatus for protecting information and privacy November 3, 2000
6889208 Contents sale system March 9, 2000
6889206 Method for computer network operation providing basis for usage fees November 21, 2000
6882987 Methods and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium February 20, 2001
6868495 One-time pad Encryption key Distribution July 21, 2000
6868405 Copy detection for digitally-formatted works November 29, 1999
6865554 Device and method for producing an optical registration carrier by means of a master mold, an optical registration carrier June 12, 2000
6865552 Data copying system, data copying apparatus, data copying method, and recording medium December 1, 1999
6859793 Software license reporting and control system and method December 19, 2002
6857071 System and method for distributing digital works, apparatus and method for reproducing digital works, and computer program product July 29, 1999
6850915 Method for controlling distribution and use of software products with net-work-connected computers June 8, 2000
6850913 Method for administering certification data August 30, 2001
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