Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498001 | Photographic silver halide emulsion | Peter Bergthaller, Jorg Siegel, Hans-Ulrich Borst, Ulrich Nickel | 2002-12-24 |
| 6379879 | Color photographic silver halide material | Jorg Hagemann, Gunter Helling, Heinz Wiesen, Ralf Wirowski | 2002-04-30 |