Issued Patents All Time
Showing 101–125 of 128 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5120652 | Substantially purified N-acyl-L-proline acylase from Comamonas testosteroni DSM 5416 and Alcaligenes denitrificans DSM 5417 | Ulrich Groeger, Wolfgang Leuchtenberger | 1992-06-09 |
| 5116872 | Microbicidal compositions | Peter Ackermann, Hanspeter Fischer, Rolf Vogel, Hans-Albrecht Hasseberg, Hans-Jochen Hasselbach +3 more | 1992-05-26 |
| 5079167 | Method of racemate resolution | Clemens Sambale, Maria-Regina Kula, Werner Hummel | 1992-01-07 |
| 5008192 | Enzymatic process for the preparation of optically active cyanohydrins | Uwe Neidermeyer, Udo Kragl, Maria-Regina Kula, Christian Wandrey, Kyriakos Makrylaleas | 1991-04-16 |
| 4980284 | Method of preparing D-.alpha.-amino acids | Kyriakos Makryaleas | 1990-12-25 |
| 4980071 | Substituted thioureas for the separation of complexly bound heavy-metal ions | Michael Schuster, Karl-Heinz Koenig, Hermann Lotter | 1990-12-25 |
| 4952706 | Derivatives of 2-pyrrolidone-5-carboxylic acid and method of obtaining them | Hans-Peter Krimmer | 1990-08-28 |
| 4946968 | Method of preparing alkali metal salts of 2-pyrrolidone-5-carboxylic acid | Hans-Peter Krimmer, Hans Remmel | 1990-08-07 |
| 4921971 | Method of preparing alkaline earth metal salts of 2-pyrrolidone-5-carboxylic acid | Hans-Peter Krimmer, Silvia Werner | 1990-05-01 |
| 4918223 | Method of preparing N-acylated mercapto-alpha-amino acids | Hans-Peter Krimmer | 1990-04-17 |
| 4918224 | Method of preparing salts of N-acetyl cysteine or N-acetyl homocysteine | Hans-Peter Krimmer | 1990-04-17 |
| 4760199 | Process for the production of non-aqueous hydrogen peroxide solutions and their use | Axel Kleemann | 1988-07-26 |
| 4728743 | Process for the production of 3-oxonitriles | Axel Kleemann, Elizabeth Wolf-Heuss | 1988-03-01 |
| 4716237 | Process for the production of 3-oxonitriles | Axel Kleemann, Elisabeth Wolf-Heuss | 1987-12-29 |
| 4686010 | Process for the production of non-aqueous hydrogen peroxide solutions and their use | Axel Kleemann | 1987-08-11 |
| 4661626 | Process for the production of 2-isocyanato-2,3-dehydrocarboxylic acid esters | Franz Effenberger, Jurgen Kuhlwein | 1987-04-28 |
| 4628126 | Process for the production of dihydroxybenzenes | Axel Kleemann | 1986-12-09 |
| 4618730 | Process for the production of pyrocatechol and hydroquinone | Axel Kleemann | 1986-10-21 |
| 4590305 | Process for the selective production of dihydroxybenzenes | Axel Kleemann | 1986-05-20 |
| 4564514 | Process for the production of water-free organic hydrogen peroxide solution | Axel Kleemann, Rolf Wirthwein | 1986-01-14 |
| 4551562 | Process for the production of dihydroxybenzenes | Axel Kleemann | 1985-11-05 |
| 4533766 | Process for the production of dihydroxybenzenes | Axel Kleemann | 1985-08-06 |
| 4524211 | Process for the production of substituted phosphonic and phosphinic acids and thiazolidinyl phosphonic and phosphinic acid ester intermediates | Hans-Guenter Koban, Jurgen Martens, Werner Schwarze | 1985-06-18 |
| 4482760 | Process for the production of 1,2-diols | Axel Kleemann, Klaus Deller, Bernd Lehmann | 1984-11-13 |
| 4469876 | Process for the production of L-proline | Axel Kleemann, Jurgen Martens, Paul Scherberich, Franz Effenberger | 1984-09-04 |