Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9271435 | Miniature microphone, protection frame thereof and method for manufacturing the same | Rongguo Yao, Zhongyuan Liu, Xianbin Wang, Maoqiang Dang | 2016-02-23 |
| 8553921 | Miniature microphone, protection frame thereof and method for manufacturing the same | Rongguo Yao, Zhongyuan Liu, Xianbin Wang, Maoqiang Dang | 2013-10-08 |