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Patent applications and USPTO patent grants for Ouyang; Chieh.The latest application filed is for "led lighting apparatus with fast changing focus".
Patent | Date |
---|---|
Illumination device Grant 8,297,756 - Ouyang , et al. October 30, 2 | 2012-10-30 |
Air purifier Grant 7,785,403 - Ouyang , et al. August 31, 2 | 2010-08-31 |
LED lighting apparatus with fast changing focus Grant 7,530,706 - Ouyang , et al. May 12, 2 | 2009-05-12 |
LED lighting apparatus with fast changing focus App 20080062505 - Ouyang; Chieh ;   et al. | 2008-03-13 |
Air Purifier App 20080047433 - OUYANG; CHIEH ;   et al. | 2008-02-28 |
Banknote scope Grant 6,637,577 - Ouyang , et al. October 28, 2 | 2003-10-28 |
Free mapping colored illuminator and a luminaire of said illuminator App 20030161154 - Ouyang, Chieh ;   et al. | 2003-08-28 |
Banknote scope App 20030029693 - Ouyang, Chieh ;   et al. | 2003-02-13 |
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