Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D844264 | Handheld vacuum cleaner | Mohammed Irfan, Ritha Chan, Xiyin Yao, Cheung Chun Kit Benson | 2019-03-26 |
| D838067 | Handheld vacuum cleaner | Mohammed Irfan, Ritha Chan, Xiyin Yao, Cheung Chun Kit Benson | 2019-01-08 |