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Your search returned 136 patents.
( 705/55 in Current US Classification ) |
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| Patent ID | Title | Date Filed |
| 6594646 | Method and apparatus for selling digital contents, processing program thereof and recording medium for the program
| December 28, 1999 |
| 6581161 | System, apparatus and method for controlling access
| March 2, 1999 |
| 6523119 | Software protection device and method
| December 4, 1996 |
| 6477649 | Information recording apparatus, information reproducing apparatus, and information distribution system
| May 13, 1998 |
| 6446051 | Document transfer systems
| February 11, 1999 |
| 6343280 | Distributed execution software license server
| December 15, 1998 |
| 6337911 | Deferred billing, broadcast, electronic document distribution system and method
| March 9, 1998 |
| 6298441 | Secure document access system
| July 14, 1998 |
| 6289455 | Method and apparatus for preventing piracy of digital content
| September 2, 1999 |
| 6240185 | Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels
| February 10, 1999 |
| 6192475 | System and method for cloaking software
| March 25, 1998 |
| 6173403 | Method and apparatus for distributing information products
| April 8, 1999 |
| 6169976 | Method and apparatus for regulating the use of licensed products
| July 2, 1998 |
| 6070171 | Method and system for copy-tracking distributed software featuring tokens containing a key field and a usage field
| May 15, 1998 |
| 6070154 | Internet credit card security
| November 27, 1998 |
| 6055314 | System and method for secure purchase and delivery of video content programs
| March 22, 1996 |
| 6049788 | System with portable terminal and data media connectable therewith
| May 23, 1997 |
| 6005935 | Method and system of using personal information as a key when distributing information
| November 20, 1996 |
| 5867579 | Apparatus for data copyright management system
| January 10, 1997 |
| 5864624 | Method for activating and executing protected functions in a communication system
| December 30, 1996 |
| 5826011 | Method of metering and protecting computer software
| April 23, 1996 |
| 5812980 | Program operating apparatus
| February 16, 1995 |
| 5812662 | Method and apparatus to protect computer software
| December 18, 1995 |
| 5754646 | Method for protecting publicly distributed software
| July 19, 1995 |
| 5694470 | System for reading encrypted information, and unit for use in such a system
| May 17, 1995 |
| 5692049 | Personal access management system
| February 13, 1995 |
| 5689561 | Computer-based trading card system and method
| October 6, 1995 |
| 5668872 | Information processing method and system
| February 7, 1995 |
| 5638513 | Secure software rental system using continuous asynchronous password verification
| June 7, 1995 |
| 5636281 | Method and device to authorize access to an instrument comprising a computerized operating system
| March 17, 1994 |
| 5568552 | Method for providing a roving software license from one node to another node
| June 7, 1995 |
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