Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9388828 | Hydraulic control system having swing motor energy recovery | Bryan J. Hillman, Jiao Zhang, Lawrence C. Tognetti, Peter Spring, Tonglin Shang | 2016-07-12 |
| 9328744 | Hydraulic control system having swing energy recovery | Lawrence J. Tognetti, Pengfei Ma, Jiao Zhang, Tonglin Shang | 2016-05-03 |