Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693793 | Preparation of caprolactam from 6-aminocapronitrile | Josef Ritz, Guido Voit, Gunther Achhammer, Rolf Fischer | 1997-12-02 |
| 5679622 | Pyridine-2,3-dicarboximides and their use for controlling undesirable plant growth | Gerhard Hamprecht, Matthias Gerber, Helmut Walter, Karl-Otto Westphalen | 1997-10-21 |
| 5646277 | Preparation of caoprolactam | Tom Witzel | 1997-07-08 |