Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D939216 | Toothbrush head | — | 2021-12-28 |
| 11201549 | Control method of power conversion circuit, and related power conversion circuit | Yanzhong Zhang, Zheng Ma | 2021-12-14 |
CL
Chunyang LIU
Overall (2021): #172,720 of 548,734Top 35%
2
Patents 2021