Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8500587 | Multiple-variator control for split power CVT and hydrostatic transmissions | Hongliu Du | 2013-08-06 |
| 7536856 | System for controlling a power output | Hongliu Du, Saurabh Pandey | 2009-05-26 |
| 6161467 | Fluid control system with regeneration | Michael A. A'Hearn, Thomas J. Hajek, Jr., Srikrishnan T. Tolappa | 2000-12-19 |
| 5876184 | Electrohydraulic pressure regulating valve | — | 1999-03-02 |
| 5876185 | Load sensing pump control for a variable displacement pump | James E. Schimpf | 1999-03-02 |
| 5578904 | Method and apparatus for determining the position of an armature of an electromagnetic actuator in response to the magnitude and time derivative of the actuator coil current | Andrew H. Nippert, Matthew G. Branch | 1996-11-26 |
| 5520262 | Electrohydraulic steering system | — | 1996-05-28 |
| 5497692 | Electrohydraulic steering system | — | 1996-03-12 |
| 5489005 | Electro-hydraulic steering system | David E. Nelson, Noel J. Rytter | 1996-02-06 |
| 5481187 | Method and apparatus for determining the position of an armature in an electromagnetic actuator | Matthew G. Branch, Andrew H. Nippert, Kirk Shively | 1996-01-02 |
| 5054599 | End of fill detector for a hydraulic clutch | — | 1991-10-08 |
| 5040648 | Electrohydraulic control device for a drive train of a vehicle | Randall M. Mitchell, David W. Bump, deceased, Michael F. Coffman, Dwight S. Holloway, Lowell E. Johnson +2 more | 1991-08-20 |