Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5362615 | Photographic recording material containing a hydroquinone diether compound | Jorg Hagemann, Erich Wolff, Johannes Sobel | 1994-11-08 |
| 5354826 | Polymeric magenta coupler and color photographic recording material that contains this polymeric magenta coupler | Gunter Helling, Rainer Bialek | 1994-10-11 |