Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5549081 | Arrangement for operating valves of an internal combustion engine | Rolf Ohlendorf, Rainer Aust, Wolfgang Strobel | 1996-08-27 |
| 5012774 | Device for the relative angular adjustment of a camshaft | Robert Niklas, Rolf Ohlendorf, Wolfgang Speier | 1991-05-07 |