Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7687632 | Process for the preparation of pyridine derivatives | Joachim Gebhardt, Norbert Gotz, Guido Mayer, Michael Rack | 2010-03-30 |
| 7488828 | Process for the preparation of 4-trifluoromethyl-2(1H)-pyridinone | Christopher T. Hamilton, Michael Gullo, Michael A. Gonzalez, Gary Roth, David B. Gorman +4 more | 2009-02-10 |
| 6740774 | Preparation of N-acylamino acid esters and N-acylamino acetals | Joachim Paust, Hansgeorg Ernst, Reinhard Kaczmarek | 2004-05-25 |
| 6476253 | Process for preparing monoacetylated hydroquinone compounds | Karin Schein, Kai-Uwe Baldenius, Wolfgang Siegel, Rainer Stürmer, Detlef Ruff | 2002-11-05 |
| 6365758 | Preparation of tocopheral carboxylates or tocotrienyl esters by acid-catalyzed reaction with carboxylic acids | Joanna Linda von dem Bussche-Hünnefeld, Guido Harms, Harald Laas | 2002-04-02 |
| 6348593 | Process for preparing folic acid | Jörg Botzem, Michael Sasha John, Joachim Paust | 2002-02-19 |
| 6329554 | Continuous preparation of unsaturated ketones | Carsten Oost, Manfred Stroezel, Heinz Etzrodt, Dietmar Weller, Bernhard Bockstiegel +2 more | 2001-12-11 |
| 6307106 | Process for preparing unsaturated ketones | Carsten Oost, Manfred Stroezel, Heinz Etzrodt, Dietmar Weller, Gerd Kaibel | 2001-10-23 |
| 6300524 | Process for preparing higher unsaturated ketones | Carsten Oost, Manfred Stroezel, Heinz Etzrodt, Dietmar Weller, Udo Rheude +3 more | 2001-10-09 |
| 6096907 | Process for preparing chromanol derivatives | Kai-Uwe Baldenius, Bernhard Bockstiegel, Detlef Ruff, Carsten Siedenbiedel, Rainer Stürmer | 2000-08-01 |
| 6051741 | Preparation of .gamma.,.delta.-unsaturated ketones by the Carroll reaction, novel catalysts therefor and the preparation thereof | Heinz Etzrodt, Dietmar Weller, Carsten Oost, Manfred Stroezel, Bernhard Bockstiegel +2 more | 2000-04-18 |
| 5874635 | Preparation of .gamma., .delta.-unsaturated ketones by the carroll reaction in cyclic carbonates or .gamma.-lactones | Heinz Etzrodt, Manfred Stroezel, Dietmar Weller | 1999-02-23 |
| 5468883 | Preparation of vitamin E | Paul Grafen, Hans Kiefer | 1995-11-21 |
| 5344995 | Preparation of cyclic acetals of 3-formyl-2-butenyltriphenylphosphonium chloride | Wolfgang Krause, Joachim Paust, Walter Dobler | 1994-09-06 |
| 5276209 | Preparation of polyenes | Klaus Kaiser, Manfred Hamm | 1994-01-04 |
| 5128151 | Stabilized menadione bisulfite formulations and their preparation | Hans Kiefer, Wolfgang Buehler, Joachim Schneider | 1992-07-07 |
| 4921711 | Animal feed or drinking water containing propanediol formates | Hans Kiefer, Hansjoerg Bipp, Fritz Fink, Dieter M. Poralla | 1990-05-01 |
| 4736040 | Preparation of 1,2-benzisothiazolones | Peter Tonne | 1988-04-05 |
| 4727188 | Preparation of o,o'-dithiodibenzamides | — | 1988-02-23 |
| 4594456 | Racemic and optically active 3-hydroxy-alpha-cyclocitral, its acetals and optically active 3-oxo-alpha-cyclocitral acetals, and their preparation | Ulrich Schaefer-Luederssen, Joachim Paust, Manfred Eggersdorfer | 1986-06-10 |
| 4493802 | Preparation of o,o'-dithiodibenzoic acids | Peter Tonne | 1985-01-15 |
| 4464537 | Preparation of saccharin | Peter Tonne | 1984-08-07 |
| 4393211 | Preparation of aromatic sulfohalides | Peter Tonne | 1983-07-12 |
| 4335047 | Preparation of cyclic acetals of trans-4-chloro-3-methyl-but-2-en-1-al, and preparation of trans-3-methyl-but-2-ene-1,4-dial-1-monoacetals | Joachim Paust | 1982-06-15 |
| 4268444 | Preparation of polyene-aldehydes | — | 1981-05-19 |