Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700358 | Recovery of caprolactam from oligomers and/or polymers of caprolactam | Hugo Fuchs, Josef Ritz | 1997-12-23 |
| 5639706 | Hydrogenation catalyst based on a platinum metal partially poisoned with finely divided sulfur | Franz-Josef Weiss, Hugo Fuchs, Heinz-Walter Schneider | 1997-06-17 |
| 5637700 | Purification of caprolactam | Hugo Fuchs, Claus-Ulrich Priester | 1997-06-10 |