Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D892771 | Earmuff for an in-ear headphone | En Pan, Xianchun Zhang, Shiyang Hong | 2020-08-11 |
ZZ
Zhifeng Zhao
Overall (2020): #201,415 of 565,922Top 40%
1
Patents 2020