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Patent applications and USPTO patent grants for Chuang; Po-An.The latest application filed is for "broadband transducer controlled by magnetic field coupling".
Patent | Date |
---|---|
Structure for mounting speaker Grant 6,752,366 - Chuang June 22, 2 | 2004-06-22 |
Broadband transducer controlled by magnetic field coupling App 20030128853 - Chuang, Po-An | 2003-07-10 |
Speaker cabinet Grant 6,561,311 - Chuang May 13, 2 | 2003-05-13 |
Structure of speaker cabinet App 20030034199 - Chuang, Po-An | 2003-02-20 |
Synchronous dustproof cover structure for sound membrane Grant 6,454,046 - Chuang September 24, 2 | 2002-09-24 |
Multi-directional mounting bracket Grant 6,347,776 - Chuang February 19, 2 | 2002-02-19 |
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