Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9404578 | Piston ring with chromium solid particle wear-prevention layer and corrosion-resistant flank surface | Waldemar Urbatzka, Stefan Duerdoth, Peter Esser | 2016-08-02 |
| 8857820 | Piston ring | Peter Esser, Ralf Lammers, Sebastian Bresinski | 2014-10-14 |
| 7871078 | Piston ring and method for the production thereof | Manfred Fischer | 2011-01-18 |
| 7001670 | Wear protection layer for piston rings, containing wolfram carbide and chromium carbide | — | 2006-02-21 |
| 6887585 | Thermally applied coating of mechanically alloyed powders for piston rings | — | 2005-05-03 |