Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698647 | Preparation of polymers based on basic vinyl monomers | Brigitta Huckestein, Volker Schehlmann, Axel Sanner | 1997-12-16 |
| 5635169 | Soluble copolymers for hair cosmetics | Axel Sanner | 1997-06-03 |