Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10838525 | Control knob for controlling operation of a machine | Wai Cheong Wilson Chu | 2020-11-17 |
| 10649556 | Control knob for controlling operation of a machine | Wai Cheong Wilson Chu | 2020-05-12 |