Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9949012 | Line control device of earphone | Xiu Liu, Jiangtao Xu | 2018-04-17 |
| 9503827 | Earphone testing device | Zongbao Hu, Baohui Song, Yongjun Liu, Yanpeng Zhao | 2016-11-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9949012 | Line control device of earphone | Xiu Liu, Jiangtao Xu | 2018-04-17 |
| 9503827 | Earphone testing device | Zongbao Hu, Baohui Song, Yongjun Liu, Yanpeng Zhao | 2016-11-22 |