Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5994050 | Method for use of light colored undeveloped photographic element | Roupen H. Maronian, Donald R. Diehl, Pamela M. Ferguson | 1999-11-30 |
| 5364747 | Color correcting layers consisting essentially of at least one dye-forming coupler and gelatin in chromogenic black-and-white photographic imaging systems | James L. Edwards, Paul T. Hahm | 1994-11-15 |
| 5362616 | Chromogenic black-and-white photographic imaging systems | James L. Edwards, Paul T. Hahm, Mitchell J. Bogdanowicz | 1994-11-08 |