Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11199016 | Swimming pool cleaning vehicle with adjustable rollers to control water flow velocity and method therefor | Wing-Tak Hui, Andrew Matthew Hui | 2021-12-14 |
| 10973366 | Portable milk frother | Kam Ming Lui | 2021-04-13 |