Issued Patents 2004
Showing 1–5 of 5 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 | Frank Ohlbach, Christoph Benisch, Andreas Ansmann, Rolf Fischer, Johann-Peter Melder +2 more | 2004-12-07 |
| 6815388 | Method for activating passivated iron | Frank Ohlbach, Rolf Fischer, Johann-Peter Melder, Martin Merger, Andreas Ansmann +1 more | 2004-11-09 |
| 6699960 | Method for producing polyamides from dinitriles and diamines | Frank Ohlbach | 2004-03-02 |
| 6686465 | Preparation of cyclic lactams | Frank Ohlbach, Andreas Ansmann, Peter Bassler, Rolf Fischer, Stefan Maixner +1 more | 2004-02-03 |
| 6683178 | Preparation of cyclic lactams | Frank Ohlbach, Andreas Ansmann, Peter Bassler, Rolf Fischer, Stefan Maixner +1 more | 2004-01-27 |