Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12163592 | Oil control ring | Thomas Bastuck, Eugen Haaf, Dirk Baerenreuter | 2024-12-10 |
| 11078868 | Piston ring | Dirk Baerenreuter | 2021-08-03 |
| 9500558 | Method and device for measuring the light gap tightness of piston rings | Sebastian Bresinski, Jens Picard | 2016-11-22 |
| 9079276 | Method for producing piston rings | Dirk Barenreuter | 2015-07-14 |