Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11197086 | Speaker device | Lei Zhang, Yongjian LI, Wenbing ZHOU, Jinbo ZHENG | 2021-12-07 |
| 11159877 | Speaker device | Chaowu LI, Yongjian LI, Yueqiang Wang, Fen YOU | 2021-10-26 |
| 11109142 | Loudspeaker device | Lei Zhang, Yongjian LI, Wenbing ZHOU, Jinbo ZHENG | 2021-08-31 |