Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11844482 | Cleaning device | Yan He | 2023-12-19 |
| D990079 | Electric cleaning device | Zhi-Chang Liu, Yan He, TU-JING ZHENG | 2023-06-20 |
| 11571721 | Drainage system for automatic cleaning storage base of electric mop | Zhi-Chang Liu, Jian-Xin Xi | 2023-02-07 |
| 11565285 | Self-cleaning automatically-stored electrical mop | Zhi-Chang Liu, Jian-Xin Xi | 2023-01-31 |