Chang; Jui-Fa

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chang; Jui-Fa.The latest application filed is for "light efficiency enhancing optical devices".

Company Profile

1.7.6

Chang; Jui-Fa - Hsinchu TW
- Hsinchu TW
CHANG; Jui-Fa - Hsinchu City TW

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Light efficiency enhancing optical devices Grant 8,922,740 - Hsieh , et al. December 30, 2	2014-12-30
Light efficiency enhancing optical devices Grant 08922740 -	2014-12-30
Chemical toner composition and method for preparing the same Grant 8,822,117 - Chiu , et al. September 2, 2	2014-09-02
Chemical toner composition and method for preparing the same Grant 8,557,496 - Chiu , et al. October 15, 2	2013-10-15
Light Efficiency Enhancing Optical Devices App 20130162931 - Hsieh; Yi-Ping ; et al.	2013-06-27
Biomass chemical toner composition and method for manufacturing the same Grant 8,283,099 - Huang , et al. October 9, 2	2012-10-09
Chemical Toner Composition And Method For Preparing The Same App 20120189957 - CHIU; Kuei-Ying ; et al.	2012-07-26
Biomass Chemical Toner Composition And Method For Manufacturing The Same App 20110143276 - Huang; Kuo-Tung ; et al.	2011-06-16
Chemical toner composition and method for preparing the same App 20100055591 - Chiu; Kuei-Ying ; et al.	2010-03-04
Silicon-containing copolymer and photosensitive resin composition containing the same Grant 6,670,093 - Song , et al. December 30, 2	2003-12-30
Silicon-containing copolymer and photosensitive resin composition containing the same App 20020177066 - Song, Tsing-Tang ; et al.	2002-11-28
Silicon-containing Vinyl Copolymer And Resist Composition Containing The Same App 20020042485 - Fang, Mao-Ching ; et al.	2002-04-11

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