Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6806350 | Washing process for the purification of polymers containing N or amino, ammonium or spirobicyclic ammonium groups | Michael Stanek, Regina Schitter, Gerald Summer, Peter Hildebrand | 2004-10-19 |