Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8530676 | Process for producing vinylene carbonate | Anke Beckmann, Paul Wagner, Heinrich Grzinia, Marielouise Schneider, Ulrich Notheis +2 more | 2013-09-10 |
| 8203006 | Process for producing vinylene carbonate | Anke Beckmann, Andreas Schulze Tilling, Paul Wagner, Leslaw Mleczko, Sigurd Buchholz | 2012-06-19 |
| 8071792 | High-purity vinylene carbonate and a method of purifying vinylene carbonate | Paul Wagner, Heinrich Grzinia | 2011-12-06 |
| 7999122 | Method of purifying vinylene carbonate | Paul Wagner, Heinrich Grzinia | 2011-08-16 |
| 7671217 | Method for the decarboxylation of dicarboxylic acids | Sigurd Buchholz, Alexander Klausener, Leslaw Mleczko, Gunter Rauchschwalbe | 2010-03-02 |
| 7629490 | Process for hydrolysing cyclopropanecarboxylic esters to the free acid | Herbert Emde, Paul Wagner | 2009-12-08 |
| 7094923 | Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethers | Lars Rodefeld, Karl H. Neumann | 2006-08-22 |
| 7074941 | Process for preparing 2-alkyl-3-aryl- and -heteroaryloxaziridines and novel 2-alkyl-3-aryloxaziridines | Alexander Klausener, Stephan Ratsch, Michael Dockner | 2006-07-11 |
| 6933406 | Method for producing 2-halo-6-nitrobenzoic acids | Alexander Klausener | 2005-08-23 |
| 6900349 | Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitrol benzyl alcohols, esters and/or ethers | Lars Rodefeld, Karl H. Neumann | 2005-05-31 |
| 6753444 | Method for producing 2,3,5,6-tetrahalogen-xylyidene compounds | Lars Rodefeld | 2004-06-22 |
| 6740761 | Process for preparing 2-alkyl-3aryl-and-heteroaryloxaziridines and novel 2-alkyl-3-aryloxaziridines | Alexander Klausener, Stephan Ratsch, Michael Dockner | 2004-05-25 |
| 6710217 | Method for producing 4-chlorobiphenyl and 4-chlorobiphenyl-specific specifications | Alexander Klausener, Paul Wagner, Lothar Puppe | 2004-03-23 |
| 6429344 | Process for the preparation of d,I-menthol | Gerd-Michael Petruck | 2002-08-06 |
| 6335470 | Method for producing variable mixtures of cyclohexylamine and dicyclohexylamine | Gerhard Darsow | 2002-01-01 |
| 6242649 | Continuous method for producing aromatic amines | Heiko Beckhaus | 2001-06-05 |
| 6156919 | Process for the preparation of aliphatic oligocarbonate diols from dimethyl carbonate and aliphatic diols | Hans-Josef Buysch, Wieland Hovestadt, Martin Melchiors | 2000-12-05 |
| 6111140 | Ru--Pd halogen-free catalyzers and method for producing cycloaliphatic amines | Hans-Josef Buysch, Gerhard Darsow, Otto Immel | 2000-08-29 |
| 6080890 | Production of aromatic amines by means of novel hydrogenation catalysts | Hans-Josef Buysch, Manfred Gallus, Joerg-Dietrich Jentsch | 2000-06-27 |
| 6077975 | Process for preparing dicycloaliphatic amines | Gerd-Michael Petruck | 2000-06-20 |
| 6054619 | Process for preparing cycloaliphatic amines | Gerd-Michael Petruck | 2000-04-25 |
| 6043394 | Process for producing aromatic amines by gaseous phase hydrogenation | Hans-Josef Buysch, Manfred Gallus, Burkhard Lachmann, Franz-Ulrich Von Gehlen | 2000-03-28 |
| 6043395 | Process for preparing variable mixtures of cyclohexyl-amine and dicyclohexylamine | Gerd-Michael Petruck | 2000-03-28 |
| 5962365 | Process for the manufacture of aromatic amines by gas-phase hydrogenation and catalyst useful thereof | Hans-Josef Buysch, Ursula Pentling | 1999-10-05 |
| 5877350 | Process for the production of aromatic amines | Hans-Josef Buysch, Ursula Pentling, Paul Wagner | 1999-03-02 |