Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353972 | Light-sensitive photographic material comprising polymeric mordant layer | Gunter Helling, Kaspar Wingender, Manfred Beck | 1982-10-12 |
| 4349624 | Photographic silver halide material | Johannes Sobel, Peter Bergthaller | 1982-09-14 |
| 4338394 | Process for hardening photographic gelatin | Peter Bergthaller, Johannes Sobel | 1982-07-06 |
| 4323646 | Process for hardening a photographic material | Peter Bergthaller, Johannes Sobel | 1982-04-06 |