Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10527034 | Digitized automatic control method for oil-pumping and digitized balance-shifting pumpjack | Changle Gao, Shenghong Zheng, Shujian Ma, Ninghui Li, Kangjun Wang +6 more | 2020-01-07 |