Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4710569 | Basic dyestuffs | Gunter Franke, Roderich Raue, Peter Wild | 1987-12-01 |
| 4647409 | Copper-phthalocyanine dyestuffs | Manfred Groll | 1987-03-03 |
| 4537721 | Cu-Pc dyestuffs | Manfred Groll | 1985-08-27 |