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Patent applications and USPTO patent grants for Chang; Su-Yi.The latest application filed is for "wireless earphone structure".
Patent | Date |
---|---|
Mobile communication apparatus Grant 7,969,414 - Wang , et al. June 28, 2 | 2011-06-28 |
Wireless earphone structure App 20090143096 - Chang; Su-Yi | 2009-06-04 |
Mobile communication apparatus App 20080305837 - Wang; Jhao-Ming ;   et al. | 2008-12-11 |
Earphone apparatus capable of reducing power consumption App 20070160255 - Cheng; Chia-Min ;   et al. | 2007-07-12 |
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