Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877390 | Degassification device for a screw extruder which processes plastic material | Gerhard Weihrich | 1989-10-31 |
| 4760129 | Process for preparing highly viscous polyhexamethyleneadipamide | Erwin Haering, Heinz Herrmann, Wolfgang Klein, Hans Werner, Elvina. S. Bokarjowa +4 more | 1988-07-26 |
| 4472106 | Pumps for viscous substances | Wilhelm Neubauer | 1984-09-18 |