Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359521 | Light-sensitive color photographic material | Mario Fryberg, Remon Hagen | 1982-11-16 |
| 4315069 | Color coupler combination | Anthony K. Harvey | 1982-02-09 |
| 4233399 | Photographic elements containing amino-substituted hydroxy-pyridones | Rainer Kitzing, Terence C. Webb, Graham Evans | 1980-11-11 |
| 4182886 | Amino-substituted hydroxy-pyridones | Rainer Kitzing, Terence C. Webb, Graham Evans | 1980-01-08 |