Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286263 | Use of copolymers based on long-chain alkyl vinyl ethers and ethylenically unsaturated dicarboxylic anhydrides for rendering leathers and skins water-repellent | Ortwin Schaffer, Herbert Bay, Karl Stork, Knut Oppenlaender, Walter Denzinger +1 more | 1994-02-15 |
| 5279613 | Copolymers based on long-chain olefins and ethylenically unsaturated dicarboxylic anhydrides for rendering leathers and skins water-repellent | Ortwin Schaffer, Herbert Bay, Karl Stork, Knut Oppenlaender, Walter Denzinger +1 more | 1994-01-18 |