Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5021555 | Color photographic material | Richard P. Szajewski | 1991-06-04 |
| 4980267 | Photographic element and process comprising a development inhibitor releasing coupler and a yellow dye-forming coupler | — | 1990-12-25 |
| 4861701 | Photographic element and process comprising a compound which comprises two timing groups in sequence | Paul A. Burns | 1989-08-29 |