Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325110 | Impact contact surface shape of an impact wrench | Zhaojun Shi | 2025-06-10 |
| 11185968 | Quick fastening device | Zhaojun Shi, Jie Liu | 2021-11-30 |
| 9174328 | Power tool having a spindle lock | Zhaojun Shi, Shan'en Gao | 2015-11-03 |