Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10455994 | Foldable and portable toilet device | Kam Ming Lui | 2019-10-29 |
| 10435903 | Swimming pool cleaning vehicle with adjustable rollers to control water flow velocity and method therefor | Wing-Tak Hui, Andrew Matthew Hui | 2019-10-08 |