Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11279278 | Pedestrian warning device having grille cover | Xiafeng Xue, Jianming Zhou, Guoqiang Chai, Shenggang Tao | 2022-03-22 |
| 11089400 | Coaxial loudspeaker | Shenggang Tao, Yuewu Shen, Xiaoqing Wang, Guoqiang Chai | 2021-08-10 |