Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807936 | Oil pressure control valve by sliding camshaft for an internal combustion engine | Eberhard Wizgall, Jan Schempp, Reinhard Kasperbauer | 2004-10-26 |
| 6694942 | Four-stroke engine with rotary valve control | Rainer Massmann, Bernhard Auler | 2004-02-24 |