Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6645379 | Filter element with a filter medium applied to a support body | André Roesgen, Christian Thalmann, Holger Stahl, Ralf Poh | 2003-11-11 |
| 5723051 | Gap filter for liquids or gases | Bertram Bartelt, Wolfgang Schaal | 1998-03-03 |
| 5554284 | Backwashable filter for fluids | Bertram Bartelt, Wolfgang Schaal | 1996-09-10 |