Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12168978 | Pump unit for miniature cleaning machine | Changguo Luo, Yongsheng Zhao | 2024-12-17 |
| 11655600 | Method for installing steel tube arches | Yugen Zhang, Chenghong Liu, Liang Ma, Changyong Ji, Yingmei Wang +3 more | 2023-05-23 |