Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12410824 | Hydraulic oil-circuit system and hydraulic jack | Yongyong ZHAN, Xinfa Du, Songfeng Wang | 2025-09-09 |
| D1079184 | Hydraulic jack | Hanxin Zhang, Yiming Wang, Yongyong ZHAN | 2025-06-10 |