Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10139118 | Air treatment apparatus and method | Sui Chun Law | 2018-11-27 |
| 9931641 | Air purification device and method | Sui Chun Law, Yiu Ming Chan | 2018-04-03 |
| 9895462 | Method and apparatus for high efficiency air purification | Sui Chun Law | 2018-02-20 |