Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9850744 | Method for extracting coalbed gas through water and coal dust drainage and a device thereof | Shuhua Zhang, Hongxing Wang, Kechu Han, Qiangkun Zhang | 2017-12-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9850744 | Method for extracting coalbed gas through water and coal dust drainage and a device thereof | Shuhua Zhang, Hongxing Wang, Kechu Han, Qiangkun Zhang | 2017-12-26 |