Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11255745 | Test device for simulating longitudinal-lateral-torsional coupled nonlinear vibration of drill string of deepwater riserless drilling and method therefor | Jun Liu, Qingyou Liu, Yufa He, Anchao Wei, Linlin Zeng +1 more | 2022-02-22 |
| 10938320 | Method for minimizing DC capacitance for cascade multilevel converter | Lichong Wang, Hao Ding, Chaozhe Wang, Zhigang Lu, Baocheng Wang | 2021-03-02 |
| 10590708 | Mechanics experiment system and method for perforated string in underground perforating blasting of oil-gas well | Jun Liu, Qingyou Liu, Guorong Wang, Haiyan ZHU, Xian Liu | 2020-03-17 |