Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6978371 | Data hiding in digital multimedia | — | 2005-12-20 |
| 6850910 | Active data hiding for secure electronic media distribution | Alexander D. Gelman, Robert Fish | 2005-02-01 |
| 6842743 | Transparent secure electronic credit card transaction protocol with content-based authentication | Xiangyang Kong, Alex Gelman | 2005-01-11 |