Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5839417 | Cast cylinderhead of a multi-cylinder internal combustion engine | Janusz Kwiatkowski | 1998-11-24 |
| 5730095 | Cast cylinder head of a multi-cylinder internal combustion engine | Michael Dohn, Gerhard Eisberg, Erwin Escherle, Erhard Rau | 1998-03-24 |