Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10820769 | Surface cleaning apparatus | Jincheng Xia, Jianjun Ge, Zhenjiang Yin, Yongsheng Liang, Kam Hoi Ma | 2020-11-03 |
| 10631702 | Surface cleaning apparatus | Jincheng Xia, Jianjun Ge, Zhenjiang Yin, Yongsheng Liang, Kin-leung Tam +2 more | 2020-04-28 |