Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6569611 | Color photographic silver halide material | Ralf Wirowski | 2003-05-27 |
| 6531269 | Color photographic silver halide material | Ralf Wirowski, Stefan Herrmann, Jurgen Jung | 2003-03-11 |