Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814357 | At least substantially metallic cylinder head gasket | Armin Diez, Tobias Gruhler, Wolfgang Fritz | 2004-11-09 |
| 4761364 | Screen printing stencil for making elastomer sealing layers on flat gasket plates and method for making same | — | 1988-08-02 |