Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6318332 | Method for monitoring adequate oil lubrication of an internal combustion engine and an internal combustion engine for carrying out the method | Eckhart Kern, Werner Wallrafen, Joachim Acht | 2001-11-20 |
| 6308564 | Method and apparatus for determining the quantity and quality of a fluid | Wolfgang Porth, Werner Wallrafen, Joachim Acht | 2001-10-30 |