Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11156047 | Wire rope coring drilling rig and new green construction method capable of replacing trench and shallow-shaft explorations | Jiuku Shan, Xiangxu Liu, Guangjie Shan, Dan Zhou, Yongbo Pan +4 more | 2021-10-26 |