Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339515 | Method of stabilizing color photographic materials and a color photographic material | Johannes Sobel | 1982-07-13 |
| 4330606 | Color photographic materials and color photographic images | Johannes Sobel | 1982-05-18 |
| 4322492 | Process for the development of color photographic images with p-dialkylaminoaniline color developers | Friedrich-Wilhelm Kunitz, Walter Puschel | 1982-03-30 |