Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312428 | Diaphragm for miniature sound generating device and miniature sound generating device | Bing Hui, Shuqiang Wang, Fengguang Ling, Chunfa Liu | 2025-05-27 |
| 12256206 | Diaphragm for sound producing device, sound producing device, and method for assembling the same | Fengguang Ling, Shuqiang Wang, Chunfa Liu | 2025-03-18 |
| 12200459 | Vibrating diaphragm of sound-producing apparatus and sound-producing apparatus | Shuqiang Wang, Fengguang Ling, Chunfa Liu | 2025-01-14 |
| 12163000 | Vibrating diaphragm of sound-producing apparatus and sound-producing apparatus | Shuqiang Wang, Fengguang Ling, Chunfa Liu | 2024-12-10 |
| 12143791 | Vibrating diaphragm of sound-producing apparatus and sound-producing apparatus | Weifeng Peng, Fengguang Ling, Chunfa Liu | 2024-11-12 |
| 11962986 | Speaker diaphragm and speaker | Ting Wang, Guodong Zhao, Jie Zhu, Chunfa Liu | 2024-04-16 |
| 11825285 | Speaker diaphragm and speaker | Ting Wang, Guodong Zhao, Jie Zhu, Chunfa Liu | 2023-11-21 |
| 11818559 | Speaker diaphragm and speaker | Ting Wang, Guodong Zhao, Jie Zhu, Chunfa Liu | 2023-11-14 |
| 11800287 | Speaker diaphragm and speaker | Ting Wang, Guodong Zhao, Jie Zhu, Chunfa Liu | 2023-10-24 |
| 11800288 | Diaphragm for sound generating device and sound generating device | Shuqiang Wang, Bing Hui, Fengguang Ling, Chunfa Liu | 2023-10-24 |
| 11470425 | Speaker | Ting Wang, Guodong Zhao, Jie Zhu, Chunfa Liu | 2022-10-11 |
| 11457317 | Speaker | Ting Wang, Guodong Zhao, Jie Zhu, Chunfa Liu | 2022-09-27 |
| 11457316 | Speaker diaphragm and speaker | Ting Wang, Guodong Zhao, Jie Zhu, Chunfa Liu | 2022-09-27 |
| 11317211 | Speaker diaphragm and speaker | Ting Wang, Guodong Zhao, Jie Zhu, Chunfa Liu | 2022-04-26 |
| 9987431 | Tri-ring syringe | Yunxing Liu | 2018-06-05 |
| 9901718 | Balloon pressure pump | Yunxing Liu | 2018-02-27 |
| 9730661 | Manifold valve device | Yunxing Liu | 2017-08-15 |
| 8478385 | Rotary medical manifold | Yunxing Liu | 2013-07-02 |
| 8412310 | Locking syringe with integrated bias member | Yunxing Liu | 2013-04-02 |