Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5023299 | Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers | Helmut Waniczek, Gerd Sylvester, Josef Witte | 1991-06-11 |