Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6119456 | Displacement control with load feedback and stroke control for a hydraulic unit | Gary R Lingenfelter | 2000-09-19 |
| 5979271 | Axle driving apparatus | Alan Johnson | 1999-11-09 |
| 5921151 | Axle driving apparatus | Alan Johnson | 1999-07-13 |
| 5802931 | Axle driving apparatus | — | 1998-09-08 |
| 5542494 | Hydrostatic transmission and axle assembly | Alan Johnson | 1996-08-06 |
| 5513717 | Hydrostatic transmission and axle assembly | Alan Johnson | 1996-05-07 |
| 5505279 | Hydrostatic transmission and axle assembly | Alan Johnson | 1996-04-09 |
| 5218886 | Hydrostatic transmission center section | Alan Johnson | 1993-06-15 |
| 5211077 | Hydrostatic transmission center section | Alan Johnson | 1993-05-18 |
| 4903545 | Hydrostatic transmission center section | Alan Johnson | 1990-02-27 |
| 4722186 | Dual pressure displacement control system | Craig C. Klocke | 1988-02-02 |
| 4584926 | Swashplate leveling and holddown device | Richard Beck, Jr. | 1986-04-29 |
| 4400935 | Engine speed control | — | 1983-08-30 |
| RE30226 | Torque limiting control | Roger D. Cannell | 1980-03-11 |