| 7147757 |
Method for separating an azepine derivative out of a mixture containing an amine an azepine derivative |
Hermann Luyken |
2006-12-12 |
$470,000 |
| 7091153 |
Hydrogenation catalyst |
Guido Voit, Rolf Fischer, Peter Bassler, Andreas Ansmann, Hermann Luyken +2 more |
2006-08-15 |
$426,000 |
| 6972075 |
Method for removing 6-aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine |
Hermann Luyken, Rolf Fischer, Johann-Peter Melder, Peter Bassler, Andreas Ansmann +1 more |
2005-12-06 |
$2,384,000 |
| 6905997 |
Method for generating catalysts |
Hermann Luyken, Andreas Ansmann, Rolf Fischer, Johann-Peter Melder, Peter Bassler |
2005-06-14 |
$572,000 |
| 6896772 |
Method for separating ammonia from solutions containing caprolactam and ammonia |
Hermann Luyken, Stefan Maixner, Rolf Fischer, Johann-Peter Melder, Peter Bassler +1 more |
2005-05-24 |
$407,000 |
| 6878798 |
Method for producing a polymer, using caprolactam |
Helmut Winterling, Andreas Ansmann, Rolf Fischer, Johann-Peter Melder, Stefan Maixner +2 more |
2005-04-12 |
$271,000 |
| 6852669 |
Hydrogenation catalyst |
Guido Voit, Rolf Fischer, Peter Bassler, Andreas Ansmann, Hermann Luyken +2 more |
2005-02-08 |
$197,000 |
| 6828457 |
Method for reducing the content of an unsaturated amine in a mixture containing an amine and a nitrile |
Christoph Benisch, Hermann Luyken, Andreas Ansmann, Rolf Fischer, Johann-Peter Melder +2 more |
2004-12-07 |
$280,000 |
| 6815388 |
Method for activating passivated iron |
Rolf Fischer, Hermann Luyken, Johann-Peter Melder, Martin Merger, Andreas Ansmann +1 more |
2004-11-09 |
$431,000 |
| 6790995 |
Preparation of primary and secondary amines from nitriles |
Joachim Pfeffinger, Michael Hullmann, Arthur Hohn, Frank Funke, Till Gerlach |
2004-09-14 |
$308,000 |
| 6699960 |
Method for producing polyamides from dinitriles and diamines |
Hermann Luyken |
2004-03-02 |
$388,000 |
| 6686465 |
Preparation of cyclic lactams |
Andreas Ansmann, Peter Bassler, Rolf Fischer, Hermann Luyken, Stefan Maixner +1 more |
2004-02-03 |
$911,000 |
| 6683178 |
Preparation of cyclic lactams |
Andreas Ansmann, Peter Bassler, Rolf Fischer, Hermann Luyken, Stefan Maixner +1 more |
2004-01-27 |
$346,000 |
| 6683179 |
Preparation of caprolactam |
Peter Bassler, Dieter Baumann, Rolf Fischer, Eberhard Fuchs, Johann-Peter Melder |
2004-01-27 |
$346,000 |
| 6683180 |
Method for the production of caprolactam |
Andreas Ansmann, Rolf Fischer, Johann-Peter Melder |
2004-01-27 |
$346,000 |
| 6677486 |
Hydrogenation of nitriles over Raney catalysts |
Andreas Ansmann, Christoph Benisch, Frank Funke, Martin Merger |
2004-01-13 |
$593,000 |
| 6677449 |
Preparation of caprolactam |
Peter Bassler, Dieter Baumann, Rolf Fischer, Eberhard Fuchs, Johann-Peter Melder |
2004-01-13 |
$593,000 |
| 6559318 |
Method for producing (2S,4R,9S)-octahydro-1H-indole-2-carboxylic acid and intermediate products therefor |
Klaus Ebel, Christoph Nubling |
2003-05-06 |
$391,000 |
| 6525223 |
Preparation of secondary amines from nitriles |
Joachim Pfeffinger, Michael Hullmann, Arthur Hohn, Frank Funke, Till Gerlach |
2003-02-25 |
$293,000 |
| 6469211 |
Hydrogenation of nitriles over Raney catalysts |
Andreas Ansmann, Christoph Benisch, Frank Funke, Martin Merger |
2002-10-22 |
$266,000 |
| 6462220 |
Method for simultaneous preparation of 6-aminocapronitrile and hexamethylene diamine |
Hermann Luyken, Andreas Ansmann, Peter Bassler, Rolf Fischer, Johann-Peter Melder +4 more |
2002-10-08 |
$466,000 |
| 6359178 |
Method for producing hexamethylene diamine |
Rolf Fischer, Peter Bassler, Hermann Luyken, Johann-Peter Melder, Martin Merger +3 more |
2002-03-19 |
$433,000 |
| 6348601 |
Preparation of N-methyl-2-pyrrolidone (NMP) |
Johann-Peter Melder, Karl-Heinz Ross, Martin Rudloff, Jörg Liebe |
2002-02-19 |
$313,000 |
| 6346641 |
Method for simultaneous production of 6-aminocapronitrile and hexamethylenediamine |
Hermann Luyken, Andreas Ansmann, Peter Bassler, Rolf Fischer, Johann-Peter Melder +4 more |
2002-02-12 |
$331,000 |
| 6297394 |
Iron-based catalyst for hydrogenating alpha-, omega-dinitriles |
Guido Voit, Rolf Fischer, Peter Bassler, Andreas Ansmann, Hermann Luyken +2 more |
2001-10-02 |
$280,000 |
