Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4268668 | Acid monomethine-metal complex dyestuffs | Peter Rasche | 1981-05-19 |
| 4260776 | Heterocyclic dyestuffs | — | 1981-04-07 |
| 4256882 | Reactive dyestuffs | Adolf Friedrich, Roderich Raue | 1981-03-17 |
| 4249010 | Naphthostyril dyestuffs | — | 1981-02-03 |
| 4234488 | Benz-[c,d]-indolyl compounds | Alfred Brack | 1980-11-18 |
| 4201713 | Naphthostyril dyestuffs | — | 1980-05-06 |