Chou; Yeh-Feng
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chou; Yeh-Feng.The latest application filed is for "waterproof speaker".
- Chou; Yeh-Feng - Tao Yuan TW
- Chou; Yeh-Feng - TAO YUAN CITY TW
- Chou; Yeh-Feng - Taoyuan City TW
- Chou; Yeh-Feng - Taoyuan TW
| Patent | Date |
|---|---|
| Waterproof speaker Grant 9,743,178 - Chou August 22, 2 | 2017-08-22 |
| Waterproof Speaker App 20170195784 - Chou; Yeh-Feng | 2017-07-06 |
| Passive radiator structure Grant 9,628,902 - Chou April 18, 2 | 2017-04-18 |
| Passive Radiator Structure App 20170085980 - Chou; Yeh-Feng | 2017-03-23 |
| Speaker Diaphragm Supporting Structure App 20160127832 - Chou; Yeh-Feng | 2016-05-05 |
| Loudspeaker structure with inner frame Grant 8,731,230 - Peng , et al. May 20, 2 | 2014-05-20 |
| Resonant structure for loudspeaker Grant 8,520,877 - Peng , et al. August 27, 2 | 2013-08-27 |
| Loudspeaker Structure With Inner Frame App 20130039528 - Peng; Jack ; et al. | 2013-02-14 |
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