Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11089400 | Coaxial loudspeaker | Shenggang Tao, Kaihua Qian, Xiaoqing Wang, Guoqiang Chai | 2021-08-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11089400 | Coaxial loudspeaker | Shenggang Tao, Kaihua Qian, Xiaoqing Wang, Guoqiang Chai | 2021-08-10 |