Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6272152 | Use of two-way cable transmissions to augment the security of the secure electronic transaction protocol | Stuart Z. Levin | 2001-08-07 |
| 4531020 | Multi-layer encryption system for the broadcast of encrypted information | Anthony Wechselberger, Leo Jedynak, David A. Drake, Larry Wayne Simpson | 1985-07-23 |
| 4531021 | Two level encripting of RF signals | Paul E. Crandell, David A. Drake, Leo Jedynak, Larry Wayne Simpson | 1985-07-23 |