Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11172884 | Method and module for detecting wearing state and wearable device | Wangwang YANG, Songrong Bai, Chang Liu, Zhiyao Liu | 2021-11-16 |
| 10277972 | Headphone and interaction system | Chang Liu, Wangwang YANG, Gengchun Deng, Haixiang Wang | 2019-04-30 |