Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359521 | Light-sensitive color photographic material | Mario Fryberg, John G. V. Scott | 1982-11-16 |
| 4323682 | Quinoxalines and their use in photographic processes | Gerald Jan, John Lenoir | 1982-04-06 |
| 4248961 | Material for color photography | Mario Fryberg | 1981-02-03 |
| 4216320 | Quinoxaline bleach catalysts | Gerald Jan, John Lenoir | 1980-08-05 |
| 4202698 | Quinoxalines and their use in photographic processes | Gerald Jan, John Lenoir | 1980-05-13 |