Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7350489 | Finger lever of a valve train of an internal combustion engine | Helmut Engelhardt, Jorg Michel | 2008-04-01 |
| 7219639 | Drag lever of a valve mechanism in an internal combustion engine | Helmut Engelhardt, Jorg Michel | 2007-05-22 |
| 5503121 | Oil supply for a valve actuation device | Walter Speil, Arndt Ihlemann | 1996-04-02 |
| 5501187 | Connection of a guide rail of a valve actuation device with a camshaft bearing | Walter Speil, Arndt Ihlemann | 1996-03-26 |