Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8193390 | Method for the production of N,N-dimethylacetamide (DMAC) | Horst Grafmans, Steffen Maas, Alexander Weck, Michael Schulz, Karl-Heinz Roβ | 2012-06-05 |
| 7642382 | Processes for preparing ethylamines | Till Gerlach, Frank Haese, Anton Meier, Johann-Peter Melder | 2010-01-05 |
| 7405327 | Method for the continuous production of an amine | Frank Haese, Arnd Bottcher, Bernd Stein, Wolfgang Reif, Johann-Peter Melder +3 more | 2008-07-29 |
| 6986833 | Process for fractionating water-containing crude amine mixtures from amine synthesis | Andreas Wölfert, Stefan Rittinger, Mark Wehinger, Aurelie Alemany, Willi Schmidt | 2006-01-17 |
| 6913674 | Process for fractionating water-containing crude amine mixtures from amine synthesis | Andreas Wölfert, Stefan Rittinger, Mark Wehinger, Aurelie Alemany, Willi Schmidt | 2005-07-05 |
| 6821396 | Process for fractionating water-containing crude amine mixtures from amine synthesis | Andreas Wölfert, Stefan Rittinger, Mark Wehinger, Aurelie Alemany, Willi Schmidt | 2004-11-23 |
| 6583286 | Method for hydrogenating unsaturated heterocyclic compounds | Arnd Bottcher, Melanie Brunner, Jochem Henkelmann, Boris Breitscheidel | 2003-06-24 |
| 6554966 | Process for preparing essentially formic acid-free N-alkyl-N′-methylalkyleneureas | Andreas Kramer, Johann-Peter Melder, Günter Riewe, Wolfgang Siegel, Hans-Jurgen Weyer | 2003-04-29 |
| 6521767 | Method for suspension hydrogenation of an anthraquinone compound in a special reactor in order to produce hydrogen peroxide | Arnd Bottcher, Jochem Henkelmann, Franz Josef Brocker, Gerd Kaibel | 2003-02-18 |
| 6455711 | Method for producing polytetrahydrofuran | Karsten Eller, Michael Hesse, Rainer Becker, Arthur Hohn | 2002-09-24 |
| 6362312 | Catalyst and method for the production of polytetrahydrofuran | Karsten Eller, Michael Hesse, Rainer Becker | 2002-03-26 |
| 6274700 | Catalyst and method for producing polytetrahydrofuran | Karsten Eller, Michael Hesse, Rainer Becker | 2001-08-14 |
| 6197979 | Method for producing polytetrahydrofuran with low color index | Rainer Becker, Karsten Eller, Michael Hesse | 2001-03-06 |
| 6133482 | Method for producing carbonyl compounds | Thomas Fetzer, Dirk Demuth, Helmuth Menig, Peter Resch, Wilhelm Ruppel +1 more | 2000-10-17 |
| 6130360 | Hydrogenation of alkinols using a catalyst containing macropores | Arnd Bottcher, Melanie Brunner, Jochem Henkelmann | 2000-10-10 |
| 6072087 | Method for producing carbonyl compounds | Thomas Fetzer, Dirk Demuth, Helmuth Menig, Peter Resch, Wilhelm Ruppel +1 more | 2000-06-06 |
| 5962700 | Butyrolactone-preparation process | Marc Heider, Thomas Ruhl, Jochem Henkelmann, Susanne Stutz, Thomas Preiss +2 more | 1999-10-05 |
| 5942645 | Hydrogenation of aromatic compounds in which at least one hydroxyl group is bonded to an aromatic ring | Thomas Ruhl, Boris Breitscheidel, Jochem Henkelmann, Thomas Wettling | 1999-08-24 |
| 5773657 | Hydrogenation of aromatic compounds in which at least one amino group is bonded to an aromatic nucleus | Thomas Ruhl, Boris Breitscheidel, Jochem Henkelmann, Andreas Henne, Thomas Wettling | 1998-06-30 |