Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5441862 | Color photographic recording material | Beate Weber, Markus Geiger | 1995-08-15 |
| 5441855 | Color photographic recording material | Beate Weber, Jorg Hagemann, Markus Geiger | 1995-08-15 |
| 5441861 | Color photographic silver halide material | Beate Weber, Klaus Walz, Markus Geiger, Kaspar Wingender, Jorg Hagemann | 1995-08-15 |
| 5354826 | Polymeric magenta coupler and color photographic recording material that contains this polymeric magenta coupler | Rainer Bialek, Ralf Weimann | 1994-10-11 |
| 5340709 | Photographic recording material | Jorg Hagemann | 1994-08-23 |
| 5330886 | Color photographic recording material | Gunter Renner | 1994-07-19 |
| 5310643 | Photographic recording material containing a light-protective agent | Jorg Hagemann | 1994-05-10 |
| 5292610 | Microcapsules and their use | Michael Muller, Wolfgang Podszun | 1994-03-08 |
| 5273870 | Color photographic negative recording material containing DIR compounds | Reinhart Matejec | 1993-12-28 |
| 5085981 | Photographic silver halide element with protective layer | Wolfgang Himmelmann, Prem Lalvani, Hans-Theo Buschmann | 1992-02-04 |
| 5070006 | Photographic material comprising an NC layer | Werner Krafft, Gunter Matschke | 1991-12-03 |
| 5057276 | Process for the preparation of reagent layers containing hydrophobic reagents | Wolfgang Himmelmann, Gary M. Oosta, Helmut Reiff, Alexander Riebel, Karl-Wilhelm Schranz | 1991-10-15 |
| 4987061 | Heat developable color photographic recording element | Manfred Peters | 1991-01-22 |
| 4943519 | Light sensitive, stabilized photographic recording material | Johannes Sobel, Hans Langen | 1990-07-24 |
| 4939077 | Photographic recording material containing polyester compounds having free acid groups | Wolfgang Himmelmann | 1990-07-03 |
| 4939079 | Photographic recording material | Erich Wolff, Hans Langen, Wolfgang Himmelmann | 1990-07-03 |
| 4921782 | Magenta coupler monomer, a polymeric magenta coupler and a color photographic recording material containing the polymeric magenta coupler | — | 1990-05-01 |
| 4865960 | Polymeric magneta coupler and a colour photographic recording material containing this polymeric magenta coupler | Erich Wolff | 1989-09-12 |
| 4840885 | Color photographic recording material for the dye diffusion transfer process | Manfred Peters, Helmut Reiff | 1989-06-20 |
| 4756998 | Polymeric couplers and light-sensitive photographic silver halide recording material containing such couplers | Friedrich-Wilhelm Kunitz, Hans Langen | 1988-07-12 |
| 4724197 | Color photographic recording material and a process for the production of color photographic images | Reinhart Matejec, Wolfgang Himmelmann | 1988-02-09 |
| 4714671 | Color photographic recording material containing a polymeric gelatine plasticizer | Wolfgang Himmelmann | 1987-12-22 |
| 4585724 | Image receptor layer comprising polyvinyl imidazole and cationic polymer | Manfred Peters | 1986-04-29 |
| 4548887 | Dye diffusion transfer process wherein proteolytic enzyme decomposes light sensitive element | Wolfgang Himmelmann | 1985-10-22 |
| 4513080 | Photographic silver halide containing recording material with crosslinked microgel particles | — | 1985-04-23 |