Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4367331 | Method of degassing of aqueous PVC dispersions | Rudolf Wiedholz | 1983-01-04 |
| 4261389 | Gas injecting valve for suspensions | Rudolf Wiedholz, Jurgen Schmidt | 1981-04-14 |