Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315269 | Thick protective overcoat layer for optical video disc | Allen Bloom, Sidney S. Seffren, Alan E. Bell | 1982-02-09 |
| 4313188 | Method of recording an ablative optical recording medium | William J. Burke, Allen Bloom | 1982-01-26 |