Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5436125 | Color photographic recording material containing combination of phenolic light stabilizers with novel polycyclic phenols as color stabilizers for the magenta pyrazoloazol type azomethine dyes | Beate Weber | 1995-07-25 |
| 5426022 | Photographic recording material comprising a specific light stabilizing compound | — | 1995-06-20 |
| 5362615 | Photographic recording material containing a hydroquinone diether compound | Ralf Weimann, Erich Wolff, Johannes Sobel | 1994-11-08 |
| 5340709 | Photographic recording material | Gunter Helling | 1994-08-23 |
| 5310643 | Photographic recording material containing a light-protective agent | Gunter Helling | 1994-05-10 |