Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11510854 | Hair care composition | Guoqiang Chen, Michael John HOPTROFF, Chengdong JI, QIANG ZHAO | 2022-11-29 |
| 9918161 | Speaker box | Zhizhu Chen, Fuhu Zhang, Chengliang Wang, Cheng Qian | 2018-03-13 |