Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12390863 | Clutch device, drill chuck, power tool, and bidirectional rotation method of drill chuck | — | 2025-08-19 |
| 11097354 | Gear self-tightening drill chuck | — | 2021-08-24 |
| 10086442 | Drill chuck | Zuozi Yu | 2018-10-02 |
| 8578773 | Travel direction detection | Chao Feng, Hongji Bao | 2013-11-12 |