Issued Patents All Time
Showing 151–152 of 152 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4758396 | Process for the preparation of a biaxially oriented polypropylene film | Guenther Crass, Gunter Schloegl, Lothar Bothe | 1988-07-19 |
| 4678339 | Screw extruder | Horst Eberhardt | 1987-07-07 |