Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5880193 | Dispersants for pigment concentrates | Volker Schrenk, Manfred Scheiba, Werner Schaefer, Guenter Hahn | 1999-03-09 |
| 4661163 | Lubricant for processing of plastics | Helmut Kehr, Adolf Kuhnle | 1987-04-28 |