Issued Patents 2025
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12285784 | Trenchless multi-stage pipe cleaning device and method combining artificial tornado and dagger-like mechanical sand | Pengshuai Zhang, Wenjiang Li, Xianmin Han, Zhichun Liu, Xingliang Sun +3 more | 2025-04-29 |