Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5067067 | Method for evaluating and designing lenses | Svetlana Z. Short | 1991-11-19 |
| 4991946 | Finite conjugate projection lens system | William T. Goosey, Jr. | 1991-02-12 |
| 4991945 | Zoom lens | — | 1991-02-12 |
| 4948239 | Zoom lens | — | 1990-08-14 |
| 4934795 | Zoom lens | — | 1990-06-19 |
| 4791700 | Fresnel lens illuminator for vacuum cleaner | James E. Bigley | 1988-12-20 |
| 4756609 | Four component compact zoom lens | — | 1988-07-12 |
| 4743103 | Lenses for photographic printers | — | 1988-05-10 |