Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11592105 | Scraper ring for a three-part oil scraper ring and three-part oil scraper ring | Dirk Barenreuter | 2023-02-28 |
| 11187322 | Piston ring having a stepped running surface | FABIAN RUCH, Jörn Pröpper | 2021-11-30 |
| 10006399 | Cylinder sleeve with wear-resistant inner layer | Volker Scherer, Nigel Gray | 2018-06-26 |