Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7396464 | Filter comprising rotatable, disk-shaped filter elements | Walter Trosch, Lothar Schreiner | 2008-07-08 |
| 7037429 | Water treatment unit | Ursula Schliebmann, Walter Trosch, Nobert Stroh | 2006-05-02 |