Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11746654 | Kind of no-pillar and gob-side entry retaining mining and construction method without the mining area division | Qihua Ma, Zhongcheng Qin, Kegong Fan, Jianguo Ning, Zhijie WEN | 2023-09-05 |
| 10787906 | Roadway forming method by expanding excavating and filling gangue paste in thick coal seam | Weizhen Liu, Yong Jian, Huiqiang Duan, Hengze Yang, Wenwu Xie | 2020-09-29 |