Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7241841 | Hydrogenated copolymers of unsubstituted and substituted conjugated dienes | Werner Obrecht, Udo Sondermann, Gerd Sylvester | 2007-07-10 |
| 7176262 | Hydrogenated vinyl-polybutadienes | Werner Obrecht | 2007-02-13 |
| 6734257 | Block copolymer based on conjugated diolefins and polar monomers | Heike Windisch, Werner Obrecht, Thomas Scholl, Oskar Nuyken, Lars Friebe +1 more | 2004-05-11 |