Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5996398 | Device for knock detection in internal combustion engine | Richard Schleupen, Stephan Hartmann, Juergen Foerster | 1999-12-07 |
| 5398540 | Knock sensor | Robert Entenmann, Stefan Unland, Romuald Fries, Robert Sloboda, Klaus Schenk +1 more | 1995-03-21 |