Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7058812 | Collusion-resistant watermarking and fingerprinting | Henrique S. Malvar, Darko Kirovski | 2006-06-06 |
| 7047413 | Collusion-resistant watermarking and fingerprinting | Henrique S. Malvar, Darko Kirovski | 2006-05-16 |
| 7020638 | System and method for flexible micropayment of low value electronic assets | Paul England | 2006-03-28 |
| 6996236 | Methods and apparatus for protecting signals transmitted between a source and destination device over multiple signal lines | Paul England, Andrew D. Rosen, Gideon A. Yuval | 2006-02-07 |
| 6983050 | Methods and apparatus for protecting information content | Paul England, Gideon A. Yuval | 2006-01-03 |
| 6898706 | License-based cryptographic technique, particularly suited for use in a digital rights management system, for controlling access and use of bore resistant software objects in a client computer | Ramarathnam Venkatesan | 2005-05-24 |
| 6891958 | Asymmetric spread-spectrum watermarking systems and methods of use | Darko Kirovski | 2005-05-10 |
| 6801999 | Passive and active software objects containing bore resistant watermarking | Ramarathnam Venkatesan | 2004-10-05 |
| 6754364 | Methods and systems for fingerprinting digital data | — | 2004-06-22 |
| 6241752 | Method of treating for impotence and apparatus particularly useful in such method | Shuki Sheinman, Abraham Ami Sidi | 2001-06-05 |
| 5878138 | System and method for detecting fraudulent expenditure of electronic assets | — | 1999-03-02 |
| 5872844 | System and method for detecting fraudulent expenditure of transferable electronic assets | — | 1999-02-16 |
| 5633928 | Key escrow method with warrant bounds | Arjen K. Lenstra, Peter M. Winkler | 1997-05-27 |
| 5588061 | System and method for identity verification, forming joint signatures and session key agreement in an RSA public cryptosystem | Ravi Ganesan | 1996-12-24 |
| 5511121 | Efficient electronic money | — | 1996-04-23 |
| 5406628 | Public key authentication and key agreement for low-cost terminals | Michael J. Beller | 1995-04-11 |
| 5299263 | Two-way public key authentication and key agreement for low-cost terminals | Michael J. Beller | 1994-03-29 |
| 5245656 | Security method for private information delivery and filtering in public networks | Shoshana Loeb | 1993-09-14 |
| 5222140 | Cryptographic method for key agreement and user authentication | Michael J. Beller, Li Fung Chang | 1993-06-22 |
| 4845749 | Secure teleconferencing system | Ernest Brickell, Pil J. Lee | 1989-07-04 |