Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9809885 | Method for coating a sliding element and sliding element, in particular a piston ring or cylinder liner of an internal combustion engine | Steffen Hoppe, Marcus Kennedy | 2017-11-07 |
| 9598763 | Piston ring for internal combustion engines | Ralf Lammers, Christiane Bauer, Steffen Hoppe | 2017-03-21 |