Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11209415 | Discrete element method for modelling a fracture evolution of a roadway surrounding rock | Xiangyu Wang, Jianbiao Bai, Shuai Yan | 2021-12-28 |
| 11034054 | Prefabricated stairs modular assembly mold and assembling method thereof | Hong Chang, Xiaofang Xiang, Xia Bai | 2021-06-15 |
| 10941803 | Blind bolt fastening device | Hongfei Chang, Jianbiao Bai, Yaping Lu, Fengjie Zhang, Wei Xie | 2021-03-09 |