Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8394160 | Filter device, especially air filter for an internal combustion engine | — | 2013-03-12 |
| 8313549 | Filtering device, in particular an air filter for an internal combustion engine | — | 2012-11-20 |
| 8303679 | Filter closure system | Ralf Bauder, Raphaelle Brast, Steffen Ritter, Michael Thienel, Carsten Schippers +1 more | 2012-11-06 |
| 8157880 | Filter device, especially air filter for an internal combustion engine | — | 2012-04-17 |
| 7918997 | Filter system | Klemens Dworatzek, Ralf Bauder, Duc Cuong Nguyen | 2011-04-05 |
| 7896166 | Compact filter element | Ralf Bauder | 2011-03-01 |
| 7744758 | Liquid filter | Klemens Dworatzek, Ralf Bauder, Duc Cuong Nguyen | 2010-06-29 |
| 7635429 | Fluid filter element | Ralf Bauder, Michael Wolf, Joachim Stinzendoerfer, Duc Cuong Nguyen, Oliver Scherer +1 more | 2009-12-22 |
| 7387726 | Liquid filter system | Michael Wolf, Joachim Stinzendoerfer, Ralf Bauder, Norbert Maurer | 2008-06-17 |
| 7017563 | Valve for controlling a fluid flow | Klemens Dworatzek | 2006-03-28 |
| 7004986 | Filter in a filter housing | Edvard Kopec, Manfred Winter, Volker Greif, Klemens Dworatzek, Marion Hartmann +2 more | 2006-02-28 |
| 6918939 | Filter device | Klemens Dworatzek, Marion Hartmann | 2005-07-19 |
| 6792925 | Filter device | Klemens Dworatzek, Marion Hartmann | 2004-09-21 |