Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5514806 | Method of preparing 1-amino-2, 6-dimethylpiperidine | Wolfgang Rrbczynski | 1996-05-07 |
| 5510489 | Method of preparing 1-amino-2, 6-dimethylpiperidine | Wolfgang Rybczynski, Wolfgang Bauer, Eckard Kujath | 1996-04-23 |
| 5290947 | Process for the preparation of pyrrole derivates | Gerhard Zoller, Eckard Kujath, Klaus Delpy | 1994-03-01 |
| 5280128 | Process for the preparation of benzothioxanthene dyestuffs | Wolfgang Bauer, Eberhard Grimm, Uwe Nickel, Herbert Wille | 1994-01-18 |
| 5144040 | Process for the preparation of 1-(acylaminoalkyl)-2-imidazolines substituted in the 2 position | Georg W. Eckhardt, Karl-Heinz Keil | 1992-09-01 |
| 4900523 | Process for removing cyanogen halides and phosgene from waste gases | Richard Bicker, Hans-Christian Militzer | 1990-02-13 |
| 4794166 | Process for the preparation of a hydrogel which is largely free from monomers | Friedrich Engelhardt, Manfred Ziegelmayer, Josef Hilbig, Reinhard Donges | 1988-12-27 |