Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4299966 | Process for the preparation of 4,4',7,7'-tetrachlorthioindigo in pigment form | Werner Beinert, Klaus Wunderlich | 1981-11-10 |
| 4220779 | Process for the preparation of quinoline derivatives | Volker Ehrig, Erich Klauke, Detlef-Ingo Schutze | 1980-09-02 |
| 4206306 | Reactive phthalocyanine dyestuffs containing a fluorotriazinyl group attached via a nitrogen bridge to the dyestuff molecule | Erich Klauke, Klaus Wunderlich | 1980-06-03 |