Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5097457 | Optical recording system having a rotating optical element provided therein | Andrew P. Keens | 1992-03-17 |
| 4943126 | Replication of carriers bearing digitally recorded information | Paul Bloch | 1990-07-24 |