Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7905088 | Energy recovery and reuse techniques for a hydraulic system | Dwight B. Stephenson, Eric P. Hamkins, Joseph L. Pfaff | 2011-03-15 |
| 7856282 | Hydraulic system with coordinated multiple axis control of a machine member | — | 2010-12-21 |
| 7823379 | Energy recovery and reuse methods for a hydraulic system | Eric P. Hamkins, Dwight B. Stephenson, Joseph L. Pfaff | 2010-11-02 |
| 7797122 | Electrohydraulic valve control circuit with velocity fault detection and rectification | Brian R. Bertolasi | 2010-09-14 |
| 7451685 | Hydraulic control system with cross function regeneration | — | 2008-11-18 |
| 7406982 | Hydraulic system control method using a differential pressure compensated flow coefficient | Joseph L. Pfaff | 2008-08-05 |
| 7377480 | Electrohydraulic valve servomechanism with adaptive resistance estimator | Joseph L. Pfaff | 2008-05-27 |
| 7373869 | Hydraulic system with mechanism for relieving pressure trapped in an actuator | Joseph L. Pfaff | 2008-05-20 |
| 6951102 | Velocity based method for controlling a hydraulic system | — | 2005-10-04 |
| 6880332 | Method of selecting a hydraulic metering mode for a function of a velocity based control system | Joseph L. Pfaff | 2005-04-19 |
| 6779340 | Method of sharing flow of fluid among multiple hydraulic functions in a velocity based control system | Joseph L. Pfaff | 2004-08-24 |
| 6775974 | Velocity based method of controlling an electrohydraulic proportional control valve | — | 2004-08-17 |
| 6763661 | Apparatus and method for providing vibration to an appendage of a work vehicle | Joseph L. Pfaff | 2004-07-20 |
| 6732512 | Velocity based electronic control system for operating hydraulic equipment | Joseph L. Pfaff | 2004-05-11 |
| 6718759 | Velocity based method for controlling a hydraulic system | — | 2004-04-13 |
| 6705079 | Apparatus for controlling bounce of hydraulically powered equipment | Joseph L. Pfaff, Dwight B. Stephenson | 2004-03-16 |
| 6018687 | Method and apparatus for printing cutoff control using prepress data | — | 2000-01-25 |
| 5813337 | Closed-loop printing control system | Lawrence R. Peters, Michael Horvath, Mark A. Hackler, Robert Knier | 1998-09-29 |