Issued Patents All Time
Showing 101–108 of 108 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5905800 | Method and system for digital watermarking | Marc Cooperman | 1999-05-18 |
| 5889868 | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data | Marc Cooperman | 1999-03-30 |
| 5822432 | Method for human-assisted random key generation and application for digital watermark system | Marc Cooperman | 1998-10-13 |
| 5745569 | Method for stega-cipher protection of computer code | Marc Cooperman | 1998-04-28 |
| 5687236 | Steganographic method and device | Marc Cooperman | 1997-11-11 |
| 5613004 | Steganographic method and device | Marc Cooperman | 1997-03-18 |
| 5539735 | Digital information commodities exchange | — | 1996-07-23 |
| 5428606 | Digital information commodities exchange | — | 1995-06-27 |