Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6881255 | Pigment preparations | Udo Herrmann, Dirk Pfutzenreuter, Hans-Jurgen Hartrumpf | 2005-04-19 |
| 6596073 | Solid pigment preparations | Peter-Roger Nyssen | 2003-07-22 |
| 6596446 | Organic pigments in color filters liquid of crystal display | Mickey Wolf, Rolf Richter, Kent Faubion, Udo Herrmann, Peter-Roger Nyssen | 2003-07-22 |
| 4633016 | Diphenylamine age resisters for rubber | Hans-Josef Buysch, Zsolt Szentivanyi | 1986-12-30 |