Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8016898 | Method for producing Mannich adducts that contain polyisobutylene phenol | Arno Lange, Dietmar Posselt, Irene Trötsch-Schaller, Marc Walter | 2011-09-13 |
| 7988749 | Method for producing Mannich adducts that contain polyisobutylene phenol | Arno Lange, Dietmar Posselt, Irene Troetsch-Schaller, Marc Walter | 2011-08-02 |
| 7956156 | Method for the removal of isobutene oligomers from an isobutene polymer | Phillip Hanefeld, Helmut Mach | 2011-06-07 |