Issued Patents 2019
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10499157 | Vibration diaphragm | Xiaojiang Gu | 2019-12-03 |
| 10382868 | Membrane for sounding device | Xiaojiang Gu | 2019-08-13 |
| 10362390 | Vibration diaphragm | Xiaojiang Gu | 2019-07-23 |
| 10306369 | Vibration diaphragm | Xiaojiang Gu | 2019-05-28 |
| 10291988 | Vibration diaphragm | Xiaojiang Gu | 2019-05-14 |