Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9869178 | Method for efficiently treating spontaneous ignition of remaining coal in large area goaf of shallow-buried coal bed | Botao Qin, Xiaowen Qin, Xiaoxing Zhong | 2018-01-16 |