Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10435903 | Swimming pool cleaning vehicle with adjustable rollers to control water flow velocity and method therefor | Wing-kin Hui, Wing-Tak Hui | 2019-10-08 |
| 10221584 | Swimming pool cleaning with wall climbing capability and method therefor | Wing-Tak Hui, Martin Wing-Kin Hui | 2019-03-05 |