Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11459849 | Filling bag and sealing method for drilled hole for detection in three zones of overburden | Yifan Zeng, Qiang Wu, Zhaolai Hua, Zhenzhong Pang, Lu Wang +4 more | 2022-10-04 |