Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10130904 | Screw filter press | Georg Klass | 2018-11-20 |
| 8985011 | Screw filter press | Georg Klass | 2015-03-24 |
| 5660725 | Gully emptier having filter provided pipe and weight compensating spring | — | 1997-08-26 |