Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8573188 | Cylinder head of an internal combustion engine | Michael Feil, Edwin Hartmann, Stefan Ruppel | 2013-11-05 |
| 8439022 | Ventilation device for a forced induction internal combustion engine | Stefan Ruppel, Robert Dunsch, Yakup Özkaya | 2013-05-14 |
| 8191538 | Deaerating and aerating device for a supercharged internal combustion engine | Robert Dunsch, Stefan Ruppel, Yakup Özkaya | 2012-06-05 |