Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12140025 | Directional drilling method for branching borehole with short radius and system | Yifan Zeng, Weihong Yang, Qiang Wu, Xuan Xiao, Kai Pang +4 more | 2024-11-12 |
| 12129620 | Method for repairing aquifer in coal mine area | Yifan Zeng, Weihong Yang, Qiang Wu, Kai Pang, Xinjiang Wei +4 more | 2024-10-29 |
| 12091971 | Tracer diffusion device, system for tracing development of water conducting fracture zone and relataed method | Yifan Zeng, Qiang Wu, Lu Wang, Shijie Tang, Xuedong Kan +2 more | 2024-09-17 |
| 12091972 | Method and device for determining development status of separation layer of coal mine | Yifan Zeng, Aoshuang Mei, Qiang Wu, Huaming Wei, Yashuai Cui +4 more | 2024-09-17 |
| 11781429 | Method for blocking mine water inrush | Yifan Zeng, Qiang Wu, Weihong Yang, Zhaolai Hua, Yanping Miao +7 more | 2023-10-10 |