Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10820108 | Speaker | Guqing Zhang | 2020-10-27 |
| 10820114 | Speaker | Guqing Zhang | 2020-10-27 |
| 10743108 | Miniature speaker | Bo Xiao | 2020-08-11 |
| 10659883 | Magnetic bowl and sounding device | Bo Xiao | 2020-05-19 |