Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6673890 | Zwitterionic polyamines and process for their production | Dieter Boeckh, Oliver Borzyk, Michael Ehle, Ralf Noerenberg, Eugene Paul Gosselink +3 more | 2004-01-06 |