Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803608 | Rear lights for bicycles and other vehicles | — | 1989-02-07 |
| 4320941 | Optical compensators for cinematography | Dexter R. Plummer | 1982-03-23 |
| 4208589 | Optical scanner | Dexter R. Plummer | 1980-06-17 |