Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7976603 | Filter housing | Klemens Dworatzek | 2011-07-12 |
| 7918997 | Filter system | Klemens Dworatzek, Karlheinz Muenkel, Duc Cuong Nguyen | 2011-04-05 |
| 7896166 | Compact filter element | Karlheinz Muenkel | 2011-03-01 |