Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6429335 | Reductive amination of aldehydes | — | 2002-08-06 |
| 6399810 | Process for the preparation of methyl cyclohexyl-propionate | Walter Kuhn, Hans-Ulrich Funk, Gerhard Senft | 2002-06-04 |
| 6268501 | Process for the preparation of hydroxyethylcyclohexanes and hydroxyethylpiperidines | — | 2001-07-31 |
| 6077974 | Process for the continuous preparation of amino-halo-genophenyl alkyl thioethers | — | 2000-06-20 |
| 6046365 | Process for preparing cyclohexanones by hydrogenation of the corresponding phenols (I.) | — | 2000-04-04 |
| 6015927 | Process for preparing cyclohexanones by hydrogenation of the corresponding phenols (II) | — | 2000-01-18 |
| 5977362 | Process for the preparation of quinazoline-2,4-diones | Nikolaus Muller, Klaus-Christian Paetz | 1999-11-02 |
| 5886232 | Process for preparing substituted cyclohexanones | Heinz Landscheidt, Alexander Klausener, Eberhard Zirngiebl | 1999-03-23 |
| 5872300 | Process for the preparation of 2-amino-6-chlorophenyl-alkylsulfanes, and 2-amino-6-chlorophenyl-isopropylsulfane | Ferdinand Hagedorn, Helmut Fiege | 1999-02-16 |
| 5663443 | Ruthenium catalysts, their preparation and a process for preparing cycloaliphatic polyamines using these catalysts | Eberhard Zirngiebl, Joerg-Dietrich Jentsch | 1997-09-02 |
| 5623045 | Process for the preparation of coatings | Christian Zwiener, Reinhard Halpaap, Josef Pedain | 1997-04-22 |
| 5101075 | Process for the preparation of bis-and tris-(3-dimethylaminopropyl)amine | Josef Kasbauer, Helmut Fiege | 1992-03-31 |
| 5011996 | Process for the preparation of amines | Heinz Ziemann | 1991-04-30 |
| 4940819 | Process for the hydrogenation of .alpha.,.beta.-unsaturated ketones | Heinz Ziemann | 1990-07-10 |
| 4193937 | Process for preparing 3-chloro- and 3,5-dichloro-anilines | Karlfried Wedemeyer, Werner Evertz | 1980-03-18 |