Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4443369 | Sulphur dyestuffs | Manfred Soll, Klaus Wunderlich | 1984-04-17 |
| 4284560 | Process for the preparation of complex compounds of the cobalt Phthalocyanine series | — | 1981-08-18 |
| 4278607 | Process for the preparation of dimethoxyanthraquinones | Gunter Gehrke | 1981-07-14 |
| 4206130 | Process for the preparation of 1,5-dichloroanthraquinone | Helmut Herzog, Walter Hohmann | 1980-06-03 |
| 4203885 | Process for the mononitration of anthraquinone | Walter Hohmann, Klaus Wunderlich | 1980-05-20 |