Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7302922 | Device for the variable actuation of gas exchange valves of internal combustion engines and method for operating said device | Helmut Schon, Peter Kuhn, Frank Obrist | 2007-12-04 |
| 7296546 | Device for the variable actuation of the gas exchange valves of internal combustion engines, and method for operating one such device | Helmut Schon, Kai-Uwe Keller, Peter Kuhn, Frank Obrist, Christian Busch | 2007-11-20 |