Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7546797 | One piece slipper holddown device | Michael Betz, Daryl I. Rober | 2009-06-16 |
| 7467935 | Low input torque rotor for vane pump | Michael Betz, Eric D Bretey, Kevin J. Landhuis | 2008-12-23 |
| 6994014 | Closed cavity piston for hydrostatic power units and method of manufacturing the same | Daryl I. Rober, Michael Betz | 2006-02-07 |
| 6802244 | Hydrostatic cylinder block and method of making the same | Robert J. Stoppek, David D. Dirks | 2004-10-12 |
| 6715997 | Housing for a rotary hydraulic unit with a servo piston | Stephen C. Frantz | 2004-04-06 |