Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4967286 | Method and apparatus for forming a digital image on an optical recording disc | Alan Bruce Hamersley, Gordon Rudd | 1990-10-30 |
| 4895252 | Optical disc package | Robert S. Parish | 1990-01-23 |
| 4819799 | Optical disc package | Robert S. Parish | 1989-04-11 |