Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4906758 | Preparation of pyrroles from dialkoxytetrahydrofurans | Wolfgang Hoelderich, Michael Hesse | 1990-03-06 |
| 4895984 | Acylation of aromatics | Manfred Eggersdorfer, Alfred Schuhmacher, Walter Grosch, Jochem Henkelmann | 1990-01-23 |
| 4853481 | Preparation of alkyl-substituted aromatic ketones | Jochem Henkelmann, Manfred Eggersdorfer, Walter Grosch, Alfred Schuhmacher | 1989-08-01 |
| 4837201 | 4-Methyl-4-phenyl-1-pentanals, their preparation and their use as scents | Walter Gramlich, Norbert Goetz, Gerhard Schindler | 1989-06-06 |
| 4820389 | Novel benzaldehyde dialkyl acetals and preparation and use thereof | Dieter Degner, Walter Gramlich, Franz Lanzendoerfer | 1989-04-11 |
| 4784985 | Substituted 4-methyl-4,7-dihydro-1,3-dioxepins, their preparation and their use as scents | Walter Gramlich | 1988-11-15 |
| 4769329 | Preparation of optically pure D- and L- lactic acid | Bryan Cooper, Werner Kuesters, Christoph Martin | 1988-09-06 |
| 4761489 | Substituted 5-formyl-1,3-dioxepans | Walter Gramltch, Dieter Jahn | 1988-08-02 |
| 4758548 | Novel aliphatic aldehydes and their preparation | Walter Gramlich | 1988-07-19 |
| 4740237 | Cyclohexane-1,3-dione derivatives and their use for controlling undesirable plant growth | Dieter Jahn, Rainer Becker, Norbert Goetz, Bruno Wuerzer | 1988-04-26 |
| 4707302 | 2-substituted 4,4,7,7-tetramethyl-1,3-dioxacycloheptanes, preparation and use thereof as scents | Walter Gramlich | 1987-11-17 |
| 4707549 | Preparation of esters of optically active 2-arylalkanoic acids | Gerhard Fritz, Manfred Eggersdorfer | 1987-11-17 |
| 4654073 | Cyclohexane-1,3-dione derivatives and their use for controlling undesirable plant growth | Dieter Jahn, Rainer Becker, Michael Keil, Winfried Richarz, Wolfgang Spiegler +1 more | 1987-03-31 |
| 4539081 | Preparation of benzaldehyde dialkyl acetals | Dieter Degner, Heinz Hannebaum, Walter Gramlich | 1985-09-03 |
| 4513150 | Preparation of but-2-ene-1,4-diones substituted in the 1,4-positions | Rolf Fischer, Hans-Martin Weitz | 1985-04-23 |
| 4464370 | Cyclohexene containing morpholines and fungicidal use | Walter Gramlich, Walter Himmele, Christoph Martin, Ernst-Heinrich Pommer | 1984-08-07 |
| 4422864 | Cyclohexanedione derivatives, their preparation and herbicides containing them | Rainer Becker, Dieter Jahn, Wolfgang Rohr, Walter Himmele, Bruno Wuerzer | 1983-12-27 |
| 4418146 | Preparation of D-N-carbamyl-.alpha.-aminoacids and micro-organisms for carrying out this preparation | Rolf Lungershausen, Christoph Martin, Stefan Marcinowski, Werner Kuesters | 1983-11-29 |
| 4410734 | Optically active phenylpropane derivatives, their preparation and their use for the preparation of fungicides | Christoph Martin, Walter Himmele | 1983-10-18 |
| 4350636 | Preparation of phenylacetonitriles carrying basic substituents | Gerhard Kastner, Karl-Heinz Geiss | 1982-09-21 |
| 4350641 | 4-Tert.-butoxyphenylglycinonitrile and the preparation of D-(-)- and L-(+)-4-hydroxyphenylglycine | Dieter Degner, Hans J. Pander | 1982-09-21 |
| 4330484 | Diastereomeric salts of malic acid and 2-aminobutanol, and process for the resolution of rademis maic acid | Wilfried Berning | 1982-05-18 |
| 4327090 | Oximinophosphoric acid derivatives, their preparation and their use in pest control | Rainer Buerstinghaus, Karl Kiehs, Heinrich Adolphi | 1982-04-27 |
| 4298438 | Preparation of 4-tert.-butylbenzaldehyde | Dieter Degner, Heinz Hannebaum | 1981-11-03 |
| 4284825 | 4-Substituted benzaldehyde-dialkylacetal | Dieter Degner, Manfred Barl | 1981-08-18 |