Issued Patents 2023
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11825285 | Speaker diaphragm and speaker | Guodong Zhao, Jie Zhu, Chun Li, Chunfa Liu | 2023-11-21 |
| 11818559 | Speaker diaphragm and speaker | Guodong Zhao, Jie Zhu, Chun Li, Chunfa Liu | 2023-11-14 |
| 11800287 | Speaker diaphragm and speaker | Guodong Zhao, Jie Zhu, Chun Li, Chunfa Liu | 2023-10-24 |