Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9337703 | Thrust bearing assembly | James Ching Sik Lau, Duncan Yiu Lung Wong | 2016-05-10 |
| 8648515 | Brush design for electric motor having commutator | James Ching Sik Lau, Duncan Yiu Lung Wong, Chang Lin Jin | 2014-02-11 |
| 8418780 | Power tool | James Ching Sik Lau | 2013-04-16 |