Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11725730 | Spacer spring for a three-part oil scraper ring and three-part oil scraper ring having said spacer spring | Laszlo Pelsoeczy | 2023-08-15 |
| 11719340 | Three-part oil scraper ring | Florian Böhnke, Richard Mittler, Thomas Bastuck | 2023-08-08 |
| 11713811 | Multi-piece oil scraper ring with reduced friction | Stephan Machliner, Sina Shahverdi | 2023-08-01 |
| 11592105 | Scraper ring for a three-part oil scraper ring and three-part oil scraper ring | Jurgen Gillen | 2023-02-28 |
| 10871228 | Two-part oil control ring having axial stabilization and twist compensation | FABIAN RUCH | 2020-12-22 |
| 9079276 | Method for producing piston rings | Markus Kellner | 2015-07-14 |
| 8371585 | Oil wiper ring | Peter Esser | 2013-02-12 |