Issued Patents 2022
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11470425 | Speaker | Guodong Zhao, Jie Zhu, Chun Li, Chunfa Liu | 2022-10-11 |
| 11457316 | Speaker diaphragm and speaker | Guodong Zhao, Jie Zhu, Chun Li, Chunfa Liu | 2022-09-27 |
| 11457317 | Speaker | Guodong Zhao, Jie Zhu, Chun Li, Chunfa Liu | 2022-09-27 |
| 11317211 | Speaker diaphragm and speaker | Guodong Zhao, Jie Zhu, Chun Li, Chunfa Liu | 2022-04-26 |