Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8726645 | Hydraulic control system having energy recovery | Jiao Zhang, Pengfel Ma | 2014-05-20 |
| 7997117 | Electrically controlled hydraulic valve calibration method and system | Jiao Zhang, Benjamin Yoo, Aleksandar Egelja, Matthew J. Beschorner | 2011-08-16 |
| 7908852 | Control system for recovering swing motor kinetic energy | Jiao Zhang, Pengfei Ma, Michael Schwab, Kalpesh Patel | 2011-03-22 |
| 7905089 | Actuator control system implementing adaptive flow control | Pengfei Ma, Chad T. Brickner, Vlad Petru Patrangenaru | 2011-03-15 |
| 7269944 | Hydraulic system for recovering potential energy | Jiao Zhang, Pengfei Ma, Michael Schwab, Kalpesh Patel | 2007-09-18 |