Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859721 | Adducts of carboxylic acids and isocyanates with epoxides, aqueous dispersions containing these adducts, processes for their preparation and their use in the autophoretic coating of metallic surfaces | Doris Oberkobusch, Roland Morlock, Karl-Heinz Stritzke | 1989-08-22 |
| 4814101 | Zwitterionic polymers and their use in hair treatment preparations | Horst Hoeffkes, Kurt Seidel, Karl Giede, Peter Busch | 1989-03-21 |