Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5949879 | Auditable security system for the generation of cryptographically protected digital data | William Berson, Richard W. Heiden, Richard A. Potoczek, Robert W. Sisson, Anthony F. Violante | 1999-09-07 |
| 5812664 | Key distribution system | Richard W. Heiden, Robert W. Sisson | 1998-09-22 |