Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880769 | Transfer of catinic dyes in their deprotonated, electrically neutral form | Johannes P. Dix, Karl-Heinz Etzbach, Ruediger Sens | 1989-11-14 |
| 4841050 | Carbazole containing benzopyrans | Andreas Guentner, Andreas Oberlinner | 1989-06-20 |
| 4828718 | Catalytic degradation of oxidizable organic and inorganic compounds in waters | Wolfgang Habermann, Hubert Engelhardt, Wolfgang Geiger, Peter Hammes, Werner Simmler | 1989-05-09 |