Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4529691 | Color photographic recording material containing color couplers | Gunter Renner, Friedhelm Sommer, Herbert Stark, Dieter Stieler, Egon Meier | 1985-07-16 |
| 4480027 | Photographic recording material for the production of color images to be viewed by reflected light | Erwin Sch/o/ n, Karl-Wilhelm Schranz | 1984-10-30 |
| 4418142 | Light-sensitive photographic silver halide recording material | Hans Langen, Erwin Ranz | 1983-11-29 |
| 4414309 | Photographic recording material containing an aldehyde remover | Hans Langen, Lothar Rosenhahn | 1983-11-08 |
| 4386155 | Process for the production of photographic images | Peter Bergthaller, Friedrich-Wilhelm Kunitz, Karl-Wilhelm Schranz | 1983-05-31 |
| 4381339 | Photographic recording material and non-diffusing compounds to be used in the material which contains a photographically active group which can be split off | Gunter Renner | 1983-04-26 |
| 4301240 | Photographic silver halide material with cross-linked particulate acrylic or methacrylic polymer | Rolf Brück | 1981-11-17 |
| 4278759 | Process of preparing photographic silver halide emulsion | Wilhelm Saleck, Erwin Muller | 1981-07-14 |
| 4267263 | Use of .beta.-aminoethyl carbamic acid for producing photographic baths and developer compositions | Friedrich-Wilhelm Kunitz, Karl Frank | 1981-05-12 |