Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7332199 | Thermal spraying of a piston ring | — | 2008-02-19 |
| 7144017 | Piston ring having wear resistant composition | Per Samuelsson, Karin Gong, Changhai Li | 2006-12-05 |
| 7052018 | Piston ring having wear resistant composition | Per Samuelsson, Karin Gong, Changhai Li | 2006-05-30 |
| 6838196 | Nickel-aluminide based wear resistant material for piston rings | — | 2005-01-04 |
| 6600130 | Method and device for providing a layer to a piston ring | Hans Sunden | 2003-07-29 |