Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684104 | Water-swellable hydrophilic polymers | Rüdiger Funk, Fritz Engelhardt, Michael Wessling | 1997-11-04 |
| 5681878 | Low-dusting pulverulent hydrophilic polymers | Helmut Klotzsche, Gustav Remmel, Uwe Stuven | 1997-10-28 |
| 5668236 | Hydrophilic highly swellable hydrogels | Fritz Engelhardt, Uwe Stuven, Helmut Klotzsche, Gustav Remmel | 1997-09-16 |
| 5594083 | Water-swellable hydrophilic polymers | R udiger Funk, Fritz Engelhardt, Michael Wessling | 1997-01-14 |