| 12225161 |
Blocking conference audio output |
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2025-02-11 |
| 12035120 |
Diaphragm and loudspeaker |
Xiaodong Cai |
2024-07-09 |
| 11962986 |
Speaker diaphragm and speaker |
Guodong Zhao, Jie Zhu, Chun Li, Chunfa Liu |
2024-04-16 |
| 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 |
| 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 |
| 9955266 |
Loudspeaker diaphragm |
Xuelu Liu, Jianbin Yang, Chao Jiang |
2018-04-24 |