Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11168907 | Room air purifier with RFID reader | Andrew R. Fox, Liang Cheng, Yinghua Yang, Zhijun Yang, Jie Zhou +6 more | 2021-11-09 |
| 10955150 | Room air purifier with RFID reader | Andrew R. Fox, Liang Cheng, Yinghua Yang, Zhijun Yang, Jie Zhou +6 more | 2021-03-23 |
| 9226638 | Mop | Feng Zeng, Liang Cheng, Gianmauro Vella | 2016-01-05 |
| 8522388 | Self-wringing mop | Feng Zeng, Jian Jun Peng | 2013-09-03 |
| 8464389 | Cleaning device having multiple cleaning surfaces | Feng Zeng | 2013-06-18 |
| D563618 | Floor mop | Feng Zeng | 2008-03-04 |
| D563068 | Floor mop | Feng Zeng | 2008-02-26 |