Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9623358 | Filter system having a support tube | Michael Kaufmann, Klaus-Dieter Ruhland | 2017-04-18 |
| 9273646 | Cyclone separation device | — | 2016-03-01 |
| 8906127 | Non-return valve and filter arrangement | — | 2014-12-09 |
| 7481863 | Air filter | Torsten Hotop | 2009-01-27 |
| 7267706 | Air filter | Jukka Schaerlund | 2007-09-11 |
| 7115156 | Air filter system | Jukka Schaerlund | 2006-10-03 |
| 5374355 | Filter for fuels or lubricants of an internal combustion engine | Heinz Habiger, Herbert Jainek, Erich Poldner | 1994-12-20 |