Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8979962 | Filter element with a guide duct that penetrates its pleated walls | Uwe Haefner, Dieter Unrath | 2015-03-17 |
| 8747507 | Filter element with guide shaft | Uwe Haefner, Markus Koegel, Andreas Breuer | 2014-06-10 |
| 7503954 | Filter element | Uwe Haefner, Peter Capuani, Volker Braeunling | 2009-03-17 |