Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10470673 | Headphone with biological feature detection function, interaction system and biological feature detection method | Chang Liu, Hexing Liu, Lei Zhao | 2019-11-12 |
| 10277972 | Headphone and interaction system | Chang Liu, Wangwang YANG, Hongliang Duan, Gengchun Deng | 2019-04-30 |
| 10185383 | Power supply manageable wearable device and power supply management method for a wearable device | Chang Liu, Wangwang YANG | 2019-01-22 |