Issued Patents All Time
Showing 25 most recent of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7875740 | Iron-containing material suitable for use as hydrogenation catalyst | Christoph Benisch, Peter Baβler, Rolf Fischer, Stefan Maixner, Johann-Peter Melder +1 more | 2011-01-25 |
| 7582805 | Supported catalyst for the selective hydrogenation of alkynes and dienes | Andrea Frenzel, Michael Hesse, Ekkehard Schwab | 2009-09-01 |
| 7501047 | Method for purifying caprolactam | Hermann Luyken, Christoph Benisch, Peter Baβler, Rolf Fischer, Stefan Maixner +1 more | 2009-03-10 |
| 7385073 | Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof | Stefan Maixner, Christoph Benisch, Hermann Luyken, Peter Baβler, Rolf Fischer +1 more | 2008-06-10 |
| 7256153 | Carrier catalytic converter for the selective hydrogenation of alkines and dienes | Andrea Frenzel, Michael Hesse, Ekkehard Schwab | 2007-08-14 |
| 7217818 | Purification of caprolactam | Rolf Fischer, Hermann Luyken, Peter Bassler, Christoph Benisch, Stefan Maixner +1 more | 2007-05-15 |
| 7115781 | Iron-containing oxidic material suitable for use as hydrogenation catalyst precursor | Christoph Benisch, Peter Bassler, Rolf Fischer, Stefan Maixner, Johann-Peter Melder +1 more | 2006-10-03 |
| 7091153 | Hydrogenation catalyst | Guido Voit, Rolf Fischer, Peter Bassler, Hermann Luyken, Martin Merger +2 more | 2006-08-15 |
| 6972075 | Method for removing 6-aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine | Hermann Luyken, Frank Ohlbach, Rolf Fischer, Johann-Peter Melder, Peter Bassler +1 more | 2005-12-06 |
| 6905997 | Method for generating catalysts | Frank Ohlbach, Hermann Luyken, Rolf Fischer, Johann-Peter Melder, Peter Bassler | 2005-06-14 |
| 6896772 | Method for separating ammonia from solutions containing caprolactam and ammonia | Hermann Luyken, Frank Ohlbach, Stefan Maixner, Rolf Fischer, Johann-Peter Melder +1 more | 2005-05-24 |
| 6878798 | Method for producing a polymer, using caprolactam | Frank Ohlbach, Helmut Winterling, Rolf Fischer, Johann-Peter Melder, Stefan Maixner +2 more | 2005-04-12 |
| 6852669 | Hydrogenation catalyst | Guido Voit, Rolf Fischer, Peter Bassler, Hermann Luyken, Martin Merger +2 more | 2005-02-08 |
| 6828468 | Preparation of higher &agr;, &bgr;-unsaturated alcohols | Jochem Henkelmann, Alois Kindler, Heinz Etzrodt, Carsten Oost, Susanne Stutz +5 more | 2004-12-07 |
| 6828457 | Method for reducing the content of an unsaturated amine in a mixture containing an amine and a nitrile | Frank Ohlbach, Christoph Benisch, Hermann Luyken, Rolf Fischer, Johann-Peter Melder +2 more | 2004-12-07 |
| 6815388 | Method for activating passivated iron | Frank Ohlbach, Rolf Fischer, Hermann Luyken, Johann-Peter Melder, Martin Merger +1 more | 2004-11-09 |
| 6790996 | Supported cobalt catalysts for nitrile hydrogenations | Christoph Benisch | 2004-09-14 |
| 6686465 | Preparation of cyclic lactams | Frank Ohlbach, Peter Bassler, Rolf Fischer, Hermann Luyken, Stefan Maixner +1 more | 2004-02-03 |
| 6683180 | Method for the production of caprolactam | Frank Ohlbach, Rolf Fischer, Johann-Peter Melder | 2004-01-27 |
| 6683178 | Preparation of cyclic lactams | Frank Ohlbach, Peter Bassler, Rolf Fischer, Hermann Luyken, Stefan Maixner +1 more | 2004-01-27 |
| 6677486 | Hydrogenation of nitriles over Raney catalysts | Christoph Benisch, Frank Funke, Frank Ohlbach, Martin Merger | 2004-01-13 |
| 6469211 | Hydrogenation of nitriles over Raney catalysts | Christoph Benisch, Frank Funke, Frank Ohlbach, Martin Merger | 2002-10-22 |
| 6462220 | Method for simultaneous preparation of 6-aminocapronitrile and hexamethylene diamine | Hermann Luyken, Frank Ohlbach, Peter Bassler, Rolf Fischer, Johann-Peter Melder +4 more | 2002-10-08 |
| 6407230 | Method for producing lactams using oligophosphate catalysts | Matthias Eiermann, Klemens Flick | 2002-06-18 |
| 6365790 | Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts | Klaus Reimer, Gerd Kaibel, Ulrich Kammel, Franz Josef Brocker, Heinz Etzrodt +4 more | 2002-04-02 |