Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5078794 | Process for preparing 4,4'-diamino-1,1'-dianthraquinonyl pigments | Detlef-Ingo Schutze, Werner Steinbeck | 1992-01-07 |
| 4969954 | Process for preparing 4,4'-diamino-1,1'-dianthraquinonyl pigments | Detlef-Ingo Schutze, Werner Steinbeck | 1990-11-13 |
| 4461911 | Process for the preparation of S-arylthioglycolic acids | Detlef-Ingo Schutze | 1984-07-24 |