Zengxun WU

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Weifang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Diaphragm and miniature speaker comprising same
- Patent number 10,856,083
- Issue date Dec 1, 2020
- GoerTek Inc.
- Zhenzhen Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
VIBRATING DIAPHRAGM FOR SOUND GENERATING DEVICE, METHOD FOR PREPARI...
- Publication number 20200336852
- Publication date Oct 22, 2020
- GOERTEK INC
- Houqiang Zhou
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
DIAPHRAGM AND MINIATURE SPEAKER COMPRISING SAME
- Publication number 20190149924
- Publication date May 16, 2019
- GOERTEK INC.
- Zhenzhen CHENG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE