Issued Patents All Time
Showing 1–25 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8907129 | Process for preparing decanecarboxylic acids | Michael Grass, Alfred Kaizik, Hans-Gerd Lueken | 2014-12-09 |
| 8846994 | Method for producing low-odor n-butane | Hans-Gerd Lueken, Alfred Kaizik, Markus Winterberg, Dirk Fridag | 2014-09-30 |
| 8581008 | Process for preparing α,β-unsaturated C10-aldehydes | Alfred Kaizik, Dirk Fridag, Hans-Gerd Lueken | 2013-11-12 |
| 8563782 | Producing α,β-unsaturated aldehydes by means of a reaction mixing pump | Alfred Kaizik, Hans-Gerd Lueken, Dirk Fridag, Dirk Mackowiak, Frank Brocksien | 2013-10-22 |
| 8461394 | Process for preparing C5 aldehyde mixtures with a high n-pentanal content | Hans-Gerd Lueken, Dirk Fridag, Udo Lenz, Hermann-Josef Schulte-Althoff, Klaus-Diether Wiese +3 more | 2013-06-11 |
| 8431638 | Citric ester mixtures and their use | Michael Grass, Stefan Buchholz | 2013-04-30 |
| 8415520 | Work-up of a 3-methyl-1-butene-containing mixture | Markus Winterberg, Alfred Kaizik, Armin Matthias Rix, Michael Grass, Marc Becker | 2013-04-09 |
| 8389774 | Parallelized jet loop reactors | Marc Becker, Robert Franke, Armin Boerner, Jens Holz | 2013-03-05 |
| 8258325 | Mixture of diesters of dianhydrohexitol derivatives with carboxylic acids of the empirical formula C8H17COOH, process for preparing these diesters, and use of these mixtures | Michael Grass, Norbert Scholz, Alfred Kaizik, Hans-Gerd Lueken | 2012-09-04 |
| 8226829 | Method for separating organic transition metal complex catalysts | Klaus-Diether Wiese, Goetz Baumgarten, Franz-Felix Kuppinger, Oliver Moeller, Dagmara Ortmann +1 more | 2012-07-24 |
| 8207375 | Microporous catalyst and method for hydrogenating aromatic compounds | Michael Grass, Alfred Kaizik, Axel Tuchlenski, Dietrich Maschmeyer, Kurt-Alfred Gaudschun +1 more | 2012-06-26 |
| 8143468 | Process for preparing 3-methylbut-1-ene | Alfred Kaizik, Klaus-Diether Wiese, Dietrich Maschmeyer, Dieter Hess, Franz Nierlich | 2012-03-27 |
| 8138379 | One-stage continuous process for hydroformylating higher olefins or olefin mixtures | Hans-Gerd Lueken, Stefan Drees, Alfred Kaizik | 2012-03-20 |
| 8129571 | Multistage continuous process for the hydroformylation of higher olefins or olefin mixtures | Hans-Gerd Lueken, Alfred Kaizik, Stefan Drees | 2012-03-06 |
| 8044229 | Alicyclic polycarboxylic ester mixtures with a high trans proportion and method for the production thereof | Dietrich Maschmeyer, Michael Grass, Axel Tuchlenski | 2011-10-25 |
| 7737318 | Process for fine purification of 1-butenic streams | Silvia Santiago-Fernandez, Armin Matthias Rix, Jochen Praefke, Dirk Roettger, Markus Winterberg | 2010-06-15 |
| 7632961 | Method for the production of alicyclic polycarboxylic acid esters from partial esters of aromatic polycarboxylic acids | Michael Grass, Alfred Kaizik, Dietrich Maschmeyer, Franz Nierlich, Axel Tuchlenski | 2009-12-15 |
| 7495134 | Carbonylation method by adding secondary sterically hindered amines | Dieter Hess, Dagmara Ortmann, Oliver Moeller, Klaus-Diether Wiese, Dirk Fridag | 2009-02-24 |
| 7473808 | Process for preparing ethyl tert-butyl ether using ethanol dewatered by a membrane process | Armin Matthias Rix, Frank Hoeper, Jochen Praefke | 2009-01-06 |
| 7432407 | Hydroisomerization of olefins comprising between 4 and 6 carbon atoms | Andreas Beckmann, Armin Matthias Rix, Udo Knippenberg, Franz Nierlich, Ralf Duessel | 2008-10-07 |
| 7381838 | Preparation of tertiary carboxylic acids | Klaus-Diether Wiese | 2008-06-03 |
| 7361714 | Catalyst and method for hydrogenating aromatic compounds | Michael Grass, Alfred Kaizik, Axel Tuchlenski, Dietrich Maschmeyer, Kurt-Alfred Gaudschun +1 more | 2008-04-22 |
| 7354883 | Catalyst and method for the production of 1-olefins from 2-hydroxylkanes | Alfred Kaizik, Dietrich Maschmeyer, Klaus-Diether Wiese, Kurt-Alfred Gaudschun | 2008-04-08 |
| 7323586 | Phthalic acid alkyl ester mixtures with controlled viscosity | Klaus-Diether Wiese, Michael Grass | 2008-01-29 |
| 7235704 | Process for preparing isobutene from tert-butanol | Gerda Grund, Dieter Reusch, Andreas Beckmann | 2007-06-26 |