Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7225773 | Variable stroke valve drive for an internal combustion engine | Ulrich Gutzer, Christian Flenker | 2007-06-05 |
| 6907852 | Valve operating device for variable stroke adjustment of a charge exchange valve of an internal combustion engine | Rudolf Flierl | 2005-06-21 |