Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10638220 | Moving-coil loudspeaker | Shu Jiang, Xinfeng Yang | 2020-04-28 |
| 10638233 | Speaker module and sound production device | Xinfeng Yang, Guofu Wang, Shu Jiang, Huaisheng Zhang, Pengcheng Ji | 2020-04-28 |