Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698649 | Copolymers based on vinyl ethers and monoethylenically unsaturated dicarboxylic anhydrides, their preparation and their use | Harald Meyer, Walter Denzinger, Axel Sanner, Hans J. Richter, Franz Frosch | 1997-12-16 |