Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5839401 | Internal combustion engine | Gerhard Gruber, Werner Hofheinz, Johannes Schwiedessen | 1998-11-24 |
| 5803034 | Cylinder head cover with drainage-grove indentation for an internal-combustion engine | Gerhard Gruber, Werner Hofheinz | 1998-09-08 |
| 5207197 | Cylinder head for a multi-cylinder internal combustion engine | Christoph Spengel | 1993-05-04 |
| 4930792 | Sealing arrangement for an engine timing housing cover | Roland Gluck, Otto Heilemann | 1990-06-05 |