Issued Patents 2004
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6815388 | Method for activating passivated iron | Rolf Fischer, Hermann Luyken, Johann-Peter Melder, Martin Merger, Andreas Ansmann +1 more | 2004-11-09 |
| 6790995 | Preparation of primary and secondary amines from nitriles | Joachim Pfeffinger, Michael Hullmann, Arthur Hohn, Frank Funke, Till Gerlach | 2004-09-14 |
| 6699960 | Method for producing polyamides from dinitriles and diamines | Hermann Luyken | 2004-03-02 |
| 6686465 | Preparation of cyclic lactams | Andreas Ansmann, Peter Bassler, Rolf Fischer, Hermann Luyken, Stefan Maixner +1 more | 2004-02-03 |
| 6683180 | Method for the production of caprolactam | Andreas Ansmann, Rolf Fischer, Johann-Peter Melder | 2004-01-27 |
| 6683179 | Preparation of caprolactam | Peter Bassler, Dieter Baumann, Rolf Fischer, Eberhard Fuchs, Johann-Peter Melder | 2004-01-27 |
| 6683178 | Preparation of cyclic lactams | Andreas Ansmann, Peter Bassler, Rolf Fischer, Hermann Luyken, Stefan Maixner +1 more | 2004-01-27 |
| 6677449 | Preparation of caprolactam | Peter Bassler, Dieter Baumann, Rolf Fischer, Eberhard Fuchs, Johann-Peter Melder | 2004-01-13 |
| 6677486 | Hydrogenation of nitriles over Raney catalysts | Andreas Ansmann, Christoph Benisch, Frank Funke, Martin Merger | 2004-01-13 |