Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11212618 | Vibration sounding device | Xudong Yan, Keyong Zhou | 2021-12-28 |
| 11159889 | Sounding device | Xudong Yan, Keyong Zhou | 2021-10-26 |
| 11109132 | Screen sound generation device | Xudong Yan, Keyong Zhou, Pengfei Zhang | 2021-08-31 |