Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4565775 | Process for the production of photographic images by the silver dye bleach process | — | 1986-01-21 |
| 4465763 | Process for the production of photographic color images by the silver dye bleach process | Mario Fryberg, Gerald Jan | 1984-08-14 |
| 4404273 | Process for the production of photographic color images by the silver dye bleach process | Mario Fryberg, Gerald Jan | 1983-09-13 |