Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576720 | Preparation of polyvinyl alcohol | Peter Ball, Peter Tschirner | 2003-06-10 |
| 6573326 | Thickeners based on vinyl alcohol copolymers | Theo Mayer, Harald Zeh, Bernd Kayser, Andreas Bacher, Ulf Dietrich | 2003-06-03 |