Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4286962 | Phthalocyanine reactive dyestuffs, their preparation and their use for dyeing materials containing hydroxyl groups or amide groups | Manfred Groll, Klaus Wunderlich | 1981-09-01 |
| 4220779 | Process for the preparation of quinoline derivatives | Hans-Samuel Bien, Erich Klauke, Detlef-Ingo Schutze | 1980-09-02 |