Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8317570 | Control of a grinding device with grinding rollers on winding shafts | — | 2012-11-27 |
| 5008471 | Process for the preparation of rooperol | George L. Wenteler, Karl H. Pegel, Siegfried Drews | 1991-04-16 |
| 4956502 | Process for the preparation of rooperol derivative | George L. Wenteler, Karl H. Regel, Siegfried Drews | 1990-09-11 |