Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6959543 | Exhaust gas manifold of an exhaust system for an internal combustion engine | Christoph Pleuss | 2005-11-01 |
| 4872624 | Drive arrangement for a vehicle having a propeller | Juergen Hawener, Rolf V. Sivers | 1989-10-10 |
| 4690238 | Four-wheel drive arrangement for motor vehicles | Rolf von Sivers, Bernhard Ilsemann | 1987-09-01 |