Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11166611 | Cleaning robot and roller cleaning device | — | 2021-11-09 |
| 11096302 | Server | HAN-YU LI, YA-NI ZHANG, Fang Yang, Gong Zhang, Zhao-Hui Zhen +1 more | 2021-08-17 |
| 10912436 | Floor cleaner, and cleaning mechanism for clearing cleaning roller | Yong Zhang | 2021-02-09 |
| 10912438 | Sweeping robot and corresponding cleaning device | — | 2021-02-09 |
| 10898048 | Floor cleaner, cleaning roller assembly, and sponge roller | Yong Zhang | 2021-01-26 |