Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8322457 | Power tool chuck assembly with hammer mechanism | Kwok Ting Mok, Zhi Liu Gu | 2012-12-04 |
| 7481608 | Rotatable chuck | Jin Lin Zhou, Chin Hung Lam, Zhi Cui, Koon For Chung | 2009-01-27 |
| 7478979 | Rotatable chuck | Jin Lin Zhou, Chin Hung Lam, Zhi Cui, Koon For Chung | 2009-01-20 |