Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11230817 | Rainfall induction type two-component high-polymer grouting device and manufacturing method thereof | Changguang Qi, Zhichao Zhang, Kan Liu, Longzhen Ye, You Gao | 2022-01-25 |