Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314817 | Monoazo compounds having a substituted thiazolium-5 diazo component radical and a substituted 1,4-phenylene coupling component radical | — | 1982-02-09 |
| 4288227 | Basic phenoxazine dyestuffs | Beat Henzi | 1981-09-08 |
| 4246404 | Basic indoline dyestuffs | — | 1981-01-20 |
| 4244872 | Coumarin dyestuffs | Beat Henzi | 1981-01-13 |