Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6857862 | Roller vane pump | Alan Johnson, Philip W. Katzer | 2005-02-22 |
| 6413055 | Swashplate position assist mechanism | Kerry G. Geringer, Dennis Greene, Jeff Herrin | 2002-07-02 |
| 6338293 | Reduced oil volume piston assembly for a hydrostatic unit | Alan Johnson, Kenneth J. Woodshank, Michael Betz | 2002-01-15 |