Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9404578 | Piston ring with chromium solid particle wear-prevention layer and corrosion-resistant flank surface | Christian Herbst-Dederichs, Stefan Duerdoth, Peter Esser | 2016-08-02 |