Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11284209 | Internally welded ANC Bluetooth headset speaker | Congdong Sha, Zhigang Wang, Shichun Zhao, Feng Zhang | 2022-03-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11284209 | Internally welded ANC Bluetooth headset speaker | Congdong Sha, Zhigang Wang, Shichun Zhao, Feng Zhang | 2022-03-22 |