Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10883320 | Ground wellhole dedicated protective pipe for gas extraction of mining-induced area | Wei Lu, Qianting Hu, Weimin Cheng, Jinliang Li, Dong Wang +1 more | 2021-01-05 |
| 10794174 | Dynamically self-balancing pressurized borehole-sealing apparatus and method thereof for coal seam gas pressure measurement | Wei Lu, Zhen Liu, Jinliang Li, Dongling Sun, Weimin Cheng +2 more | 2020-10-06 |