Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8454465 | Toothed chain with optimized chain joint and enlarged external flank angle | Volker Hirschmann, Lutz Welke | 2013-06-04 |
| 8052557 | Hydraulic auto-tensioner with double seal ring | Oliver Daub | 2011-11-08 |
| 7758461 | Shaved tooth plate | Erwin Feld | 2010-07-20 |