Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8636902 | Oil filter arrangement | Benjamin Diehl, Stefan Heinz | 2014-01-28 |
| 8282821 | Oil filter assembly and associated filter element | Jan Maier, Friedhelm Pfitzer, Alexander Maute, Stefan Heinz, Matthias Knoell | 2012-10-09 |
| 8128818 | Oil filter | Alexander Maute, Friedhelm Pfitzer, Jan Maier | 2012-03-06 |
| 7862717 | Oil filter arrangement | Friedhelm Pfitzer, Alexander Maute | 2011-01-04 |
| 7842183 | Oil filter assembly | Stefan Heinz, Friedhelm Pfitzer, Alexander Maute | 2010-11-30 |
| 7198061 | Valve | Matthias Knoell, Friedhelm Pfitzer | 2007-04-03 |