Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5534541 | Compounds for combating plant disease | Karlheinz Drauz | 1996-07-09 |
| 5147147 | Method for the removal of aqueous liquids from the sump of an underground cavity | Harald Peterson, Werner Harms, Uwe Kramer | 1992-09-15 |
| 4590167 | Thin-layer chromatographic method for the separation of enantiomers | Kurt A. Gunther, Maren Schickedanz | 1986-05-20 |
| 4562153 | Process for the separation of L-leucine and L-isoleucine | Axel Kleemann, Horst Weigel | 1985-12-31 |
| 4562152 | Process for obtaining pure L-leucine | Axel Kleemann, Horst Weigel | 1985-12-31 |
| 4551548 | Process for the recovery of S-(carboxymethyl)-(R)-cysteine and S-(carboxymethyl)-(S)-cysteine | Axel Kleemann, Horst Weigel | 1985-11-05 |
| 4524211 | Process for the production of substituted phosphonic and phosphinic acids and thiazolidinyl phosphonic and phosphinic acid ester intermediates | Karlheinz Drauz, Hans-Guenter Koban, Werner Schwarze | 1985-06-18 |
| 4511719 | N.alpha.-(3-Cyanopropanoyl)-aminocarboxylic acid derivatives and their use | Axel Kleemann, Horst Weigel | 1985-04-16 |
| 4469876 | Process for the production of L-proline | Karlheinz Drauz, Axel Kleemann, Paul Scherberich, Franz Effenberger | 1984-09-04 |
| 4469875 | Optically active proline derivative, process for its production and use | Eberhard Busker, Regina Steigerwald, Horst Weigel | 1984-09-04 |
| 4436910 | Process for the production of aqueous solutions of sodium salts of .alpha.- a | Axel Kleemann, Bernd Lehmann | 1984-03-13 |
| 4430509 | Process for the separation of the racemate (R,S)-cysteine | Horst Bethge, Karlheinz Drauz, Axel Kleemann, Horst Weigel | 1984-02-07 |
| 4426532 | .alpha.-(3-Cyano-propanoyl)-aminocarboxylic acid derivatives | Axel Kleemann, Horst Weigel | 1984-01-17 |
| 4416828 | Process for the resolution of the racemate S-(carboxymethyl)-(RS)-cysteine (A) | Horst Bethge, Axel Kleemann | 1983-11-22 |
| 4416827 | Process for the resolution of the racemate (1RS,2SR)-2-amino-1-phenyl-propan-1-ol | Horst Bethge, Axel Kleemann | 1983-11-22 |
| 4415738 | Process for the production thiazolines-(3) | Paul Scherberich, Horst Bethge, Axel Kleemann | 1983-11-15 |
| 4411840 | Process for the resolution of the racemate S-(carboxymethyl)-(RS)-cysteine (B) | Horst Bethge, Axel Kleemann | 1983-10-25 |
| 4391988 | Process for the production of aqueous sodium methioninate solutions | Manfred Spindler, Herbert Tanner, Friedhelm Geiger, Friedrich Bittner | 1983-07-05 |
| 4391987 | Process for the production of aqueous sodium methioninate solutions | Manfred Spindler, Herbert Tanner, Friedhelm Geiger, Friedrich Bittner | 1983-07-05 |
| 4376215 | Process for the production of 4-aminobutyramide hydrochloride | Klaus Deller, Axel Kleemann, Horst Weigel | 1983-03-08 |
| 4374062 | Process for the production of peptides | Axel Kleemann, Marc Samson | 1983-02-15 |
| 4356324 | Optically active 1,2-bis-(diphenylphosphine)-compounds | Wolfgang Bergstein, Axel Kleemann | 1982-10-26 |
| 4322552 | Process for the production of 4-aminobutyramide hydrochloride | Axel Kleemann, Horst Weigel | 1982-03-30 |
| 4313894 | Process for the production of 3-cyanopropionamide | Axel Kleemann, Wolfgang Leuchtenberger, Horst Weigel | 1982-02-02 |