Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9970464 | Pre-tensioning-pre-twisting full-bridge 2D electro-hydraulic proportional directional valve | Jian Ruan, Wei Li, Bin Meng, Qiang Zuo | 2018-05-15 |
| D470739 | Portable tool combination | — | 2003-02-25 |
| 6431034 | Tool handle having a completely openable configuration | — | 2002-08-13 |
| 6070732 | Tool box having spring-biased tool holder | — | 2000-06-06 |