Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4268668 | Acid monomethine-metal complex dyestuffs | Horst Harnisch | 1981-05-19 |
| 4244863 | Preparation of pigment concentrates | Heinz-Peter Hemmerich, Jurgen Spille, Dietmar Kranz, Hans J. Rosenkranz | 1981-01-13 |
| 4190417 | Process for dyeing and printing sheets | Helmuth H. Prochaska, Gert Baumann, Heinz Muller, Alberto Gonzales-Dorner | 1980-02-26 |
| 4186029 | Aqueous dyestuff dispersions | Volker Aign, Hans Schulze, Fritz Bremer, Reinhold Hornle, Karlheinz Wolf +1 more | 1980-01-29 |