Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668204 | Stabilization of polycarbonates having high heat distortion temperatures | Helmut-Martin Meier, Uwe Westeppe, Rolf Dhein, Dieter Freitag | 1997-09-16 |
| 5456861 | Abietic acid derivatives and their use as emulsifiers | Karl-Erwin Piejko, Christian Lindner, Claus Wulff | 1995-10-10 |
| 5250622 | Polymer combinations with a high rubber content | Holger Lutjens, Karl-Erwin Piejko, Christian Lindner | 1993-10-05 |