Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4322492 | Process for the development of color photographic images with p-dialkylaminoaniline color developers | Friedrich-Wilhelm Kunitz, Karl-Wilhelm Schranz | 1982-03-30 |
| 4301243 | Photographic recording material | Heinrich Odenwalder, Erwin Ranz | 1981-11-17 |
| 4250252 | Light-sensitive color photographic material | Heinrich Odenwalder, Hans Vetter, Erwin Ranz | 1981-02-10 |
| 4242435 | Photographic dye diffusion transfer process | Hans Vetter, Paul Marx | 1980-12-30 |
| 4198235 | Dye diffusion transfer process employing compounds that release sulfonamide dye providing radicals | Hans Vetter, Arnfried Melzer, Manfred Peters | 1980-04-15 |
| 4195992 | Photographic dye diffusion transfer process | Rudolf Stolzenburg, Paul Marx | 1980-04-01 |
| 4186012 | Light sensitive color photographic material containing development inhibitor releasing coupler | Heinrich Odenwalder, Robert J. Pollet, Erwin Ranz | 1980-01-29 |