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 | Frank Ohlbach, Christoph Benisch, Hermann Luyken, Andreas Ansmann, Rolf Fischer +2 more | 2004-12-07 |
| 6815388 | Method for activating passivated iron | Frank Ohlbach, Rolf Fischer, Hermann Luyken, Martin Merger, Andreas Ansmann +1 more | 2004-11-09 |
| 6723880 | Preparation of secondary amines from primary amines | Peter Neumann, Christoph Benisch, Arthur Hohn, Joachim Pfeffinger | 2004-04-20 |
| 6713652 | Process for hydrolyzing optically active amides | Klaus Ditrich, Wolfgang Ladner | 2004-03-30 |
| 6686465 | Preparation of cyclic lactams | Frank Ohlbach, Andreas Ansmann, Peter Bassler, Rolf Fischer, Hermann Luyken +1 more | 2004-02-03 |
| 6683180 | Method for the production of caprolactam | Frank Ohlbach, Andreas Ansmann, Rolf Fischer | 2004-01-27 |
| 6683179 | Preparation of caprolactam | Peter Bassler, Dieter Baumann, Rolf Fischer, Eberhard Fuchs, Frank Ohlbach | 2004-01-27 |
| 6683178 | Preparation of cyclic lactams | Frank Ohlbach, Andreas Ansmann, Peter Bassler, Rolf Fischer, Hermann Luyken +1 more | 2004-01-27 |
| 6683177 | Process for producing caprolactam | Eberhard Fuchs, Werner Schnurr, Rolf Fischer | 2004-01-27 |
| 6677449 | Preparation of caprolactam | Peter Bassler, Dieter Baumann, Rolf Fischer, Eberhard Fuchs, Frank Ohlbach | 2004-01-13 |