Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5939246 | Color photographic silver halide negative imaging material and process | John C. Brewer | 1999-08-17 |
| 5283164 | Color film with closely matched acutance between different color records | David E. Fenton, John F. Sawyer | 1994-02-01 |