Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11781420 | Displacement measuring device and speed measuring method of drilling traction robot | Jianguo Zhao, Qingyou Liu, Guorong Wang | 2023-10-10 |
| 11668148 | Downhole explosion robot based on planetary roller screw telescoping and traction method thereof | Xuelian Dong, Qiaozhu Wang, Jingran Tang, Qingyou Liu, Xingming Wang +1 more | 2023-06-06 |
| 11572767 | Dynamic design method for personalized drill bit for complex difficult-to-drill formation | Qingyou Liu | 2023-02-07 |
| 11567233 | Numerical simulation and parameter optimization method for volumetric fracturing of unconventional dual medium reservoir | Qingyou Liu, Yapu Zhao, Yang Li | 2023-01-31 |