Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8474590 | Frictional part with a zig-zag or undulating circumferential groove in the frictional surface | Volker Reiners | 2013-07-02 |
| 8424664 | Friction part for a frictionally acting device | Salvatore Contrino | 2013-04-23 |
| 7143882 | Disk for a force transmitting aggregate | Bernd Matthes, Karl-Heinz Bauer, Harald Merkel | 2006-12-05 |
| 7137490 | Friction-lining segment, friction lining and process for its manufacture | Markus Otremba, Meike Lenk | 2006-11-21 |
| 7073650 | Friction plate groove pattern | Erik Seeber, Dieter Zimprich, Nico Sigel | 2006-07-11 |
| 4267912 | Synchronizing ring | Walter Bauer, Gunther Lanzerath, Helmut Patzer, Richard Vogele | 1981-05-19 |