Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11652818 | Method and apparatus for accessing service system | Hongdong Zheng, Long Chen, Hanxiao Xiao, Zixi Liu, Biao Zhang +5 more | 2023-05-16 |
| 10247001 | Anti-spalling blocking bar for large cross-section coal gallery excavation work surface and supporting method | Shengqi Yang, Miao Chen | 2019-04-02 |