Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11350209 | Noise reduction headset having multi-microphone and noise reduction method | Minlong Xu | 2022-05-31 |
| 10306349 | Earphone | Qigao Chen, Tonghui Guo, Ping Xie | 2019-05-28 |
| 10244302 | Earphone | Ping Xie, Xiaofei FANG | 2019-03-26 |
| 9654865 | Earphone | Qigao Chen, Jiangtao Xu | 2017-05-16 |
| 9503827 | Earphone testing device | Zongbao Hu, Wentuan Zheng, Baohui Song, Yongjun Liu | 2016-11-22 |