Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10969013 | Compression oil control piston ring | FABIAN RUCH | 2021-04-06 |
| 10969014 | One-piece oil control ring | FABIAN RUCH | 2021-04-06 |
| 10883600 | Two part oil control ring having oil pressure effect ridges | FABIAN RUCH | 2021-01-05 |