Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11631592 | Etching process with in-situ formation of protective layer | Yu-Qi Wang, Wenjie Zhang, Hong Song, Lianjuan Ren | 2023-04-18 |
| 11585218 | Drilling device for surveying front rock-mass intactness of tunnel face for tunnel constructed by TBM and method using the same | Yujie WANG, Ruilang Cao, Yufei Zhao, Qiang Shen, Jin Pi +3 more | 2023-02-21 |