Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658992 | Polyethylene composition for injection molding | Jens Ehlers, Norbert Freisler | 1997-08-19 |
| 5656686 | Polyethylene molding compositions | Josef Berzen, Jens Ehlers, Meinhard Gusik | 1997-08-12 |