Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814357 | At least substantially metallic cylinder head gasket | Armin Diez, Tobias Gruhler, Karl Schmauder | 2004-11-09 |
| 6769696 | At least substantially metallic cylinder head gasket | Armin Diez, Tobias Gruhler | 2004-08-03 |
| 6722661 | Multilayer gasket | — | 2004-04-20 |