Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6089198 | Device for varying the opening and closing times of gas exchange valves of an internal combustion engine | Dieter Goppelt, Mike Kohrs, Jochen Auchter | 2000-07-18 |
| 5960822 | Step valve | Jörg F. W. Weber, Dieter Adler | 1999-10-05 |