Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4203885 | Process for the mononitration of anthraquinone | Walter Hohmann, Helmut Seidler | 1980-05-20 |
| 4190726 | Polycyclic dyestuffs | Detlef-Ingo Schutze | 1980-02-26 |
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4203885 | Process for the mononitration of anthraquinone | Walter Hohmann, Helmut Seidler | 1980-05-20 |
| 4190726 | Polycyclic dyestuffs | Detlef-Ingo Schutze | 1980-02-26 |