Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5293370 | Method and apparatus for creating optical disc masters | Jim Norton, Robert B. Dobbin, David G. Loeppky | 1994-03-08 |
| 5283159 | Optical recording medium and method for improved pit geometry and increased laser tracking | James R. Norton, David G. Loeppky, Robert B. Dobbin, Daniel Burkett | 1994-02-01 |
| 5050021 | Expanded micro cassette player-recorder | Stephen K. Shu, John A. Rawson | 1991-09-17 |