Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5630938 | Evertable drum centrifuge filter | Gunnar Grim, Bruno Hegnauer | 1997-05-20 |
| 4446021 | Filter-medium support plate for centrifugal filter | Erhard Aufderhaar, Gunther Hultsch, Walter Kisslinger | 1984-05-01 |