Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7275527 | Method and apparatus for venting a crankcase of an internal combustion engine | Ralf Kaufmann, Rudolf Klein, Mario Murwald | 2007-10-02 |
| 5820503 | Tensioner for traction means with predefined tensioning displacement | Ralf Kaufmann, Manfred Bonkowski, Michael Huss | 1998-10-13 |
| 5730673 | Hydraulic tensioning arrangement for tensioning flexible drive means for a camshaft | Hubert Schnupke, Helmut Kronowiecki, Erhard Rau, Robert Gulpen | 1998-03-24 |