Issued Patents 2025
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416237 | Methods for grout injection repair and water retention in goaf | Hao Li, Qiang Wu, Weihong Yang, Donghui Yang, Aoshuang Mei +1 more | 2025-09-16 |
| 12338721 | Coal mining system and method of dual circulation drilling with mechanical reaming and abrasive jet | Donghui Yang, Qiang Wu, Zilong Yuan, Hao Li, Junhao Ren +2 more | 2025-06-24 |
| 12312958 | Method of segmented grouting for repairing aquifers in mining area | Weihong Yang, Qiang Wu, Xinjiang Wei, Kai Pang, Xuan Xiao +1 more | 2025-05-27 |
| 12287445 | Coal rock interface directional detection device and method based on elastic waves | Xianhui Wang, Qiang Wu, Chunsheng Liu, Fei Chen, Jia Zhao +1 more | 2025-04-29 |
| 12241340 | Coal and coalbed methane mining system based on ground drilling, method and related device | Donghui Yang, Qiang Wu, Junhao Ren, Zilong Yuan, Fulong Zhai +2 more | 2025-03-04 |
| 12241371 | Integrated mining method of coal breaking, coal extraction and water circulation in U-well and system thereof | Donghui Yang, Qiang Wu, Hao Li, Junhao Ren, Zeyang Liu +2 more | 2025-03-04 |
| 12196076 | Grouting and water blocking method for directional hole with large offset in hard rock stratum | Weihong Yang, Qiang Wu, Xinjiang Wei, Xuejun Wang, Kai Pang +2 more | 2025-01-14 |