Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7879122 | Air filter and fan device for vehicle ventilation systems | Gerald Richter, Olaf Degenhardt | 2011-02-01 |
| 7470177 | Device for control of air flow rates to the instrument panel air outlets of a vehicle heating or air conditioning unit | Christoph Capellmann, Olaf Degenhardt, Michael Friedl, Christian Heidinger, Markus Matthes +1 more | 2008-12-30 |
| 6894620 | Method and device for monitoring the service life of a filter | Heinz Reinhardt, Richard Borris | 2005-05-17 |
| 6749657 | Filter system | Uwe Felber, Bjorn Boschert, Tilo Rinckleb, Dieter Schottmer | 2004-06-15 |