Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6558887 | Color photographic silver halide material | Gunter Helling | 2003-05-06 |
| 6534254 | Color photographic print material | Gunter Helling, Siegfried Dzwonnek | 2003-03-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6558887 | Color photographic silver halide material | Gunter Helling | 2003-05-06 |
| 6534254 | Color photographic print material | Gunter Helling, Siegfried Dzwonnek | 2003-03-18 |