Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4988803 | Fiber reactive azo dyes containing a morpholinyl-, piperazinyl- or piperidnyl- substituted flurotriazinyl radical | Frank-Michael Stohr, Hermann Henk | 1991-01-29 |
| 4978746 | Reactive naphthyl aza pyridone dyestuffs | — | 1990-12-18 |
| 4929757 | Process for the preparation of 3-aminophenyl 2-hydroxy-ethyl sulphone | — | 1990-05-29 |
| 4665179 | Triphendioxazine dyestuffs | Klaus Wunderlich, Wolfgang Harms, Horst Jager | 1987-05-12 |
| 4659827 | Process for producing 2,4,5,6-tetrachloropyrimidine by way of 5,6-dichloro-2,4-dihydroxypyrimidine which was produced from the corresponding 5,6-dichloro-2,4-di(trihalomethyl)-pyrimidine and a process for producing 2,4-dihydroxypyrimidine derivatives | Karl H. Schundehutte | 1987-04-21 |
| 4638054 | Aminonaphthol bisazo reactive dyes | Martin Michna | 1987-01-20 |
| 4621138 | Triphendioxazine dyestuffs | Horst Jager, Klaus Langheinrich | 1986-11-04 |
| 4577015 | Triphendioxazine vinyl sulphone dyestuffs | Horst Jager, Wolfgang Harms | 1986-03-18 |