Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663443 | Ruthenium catalysts, their preparation and a process for preparing cycloaliphatic polyamines using these catalysts | Eberhard Zirngiebl, Joerg-Dietrich Jentsch | 1997-09-02 |
| 5623045 | Process for the preparation of coatings | Christian Zwiener, Reinhard Halpaap, Josef Pedain | 1997-04-22 |