Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8950704 | Cold-launch device and method using the same | Zhenhua Hu, Aiwu Hu | 2015-02-10 |
| 6546725 | Hydraulic jack and a hydraulic circuit for such a hydraulic jack | Aiwu Hu, Zhenhua Hu | 2003-04-15 |
| 5992149 | Control unit for hand-operated hydraulic jack | — | 1999-11-30 |