Assignee
CHANG CHIA-HU
US·2 granted patents·1 pending application·2 citations·filing 2008–2011
Top patents by PatentIndex Score
3 records- 0163US7847103B2Ultraviolet light absorbing ketones of 2-(2-hydroxyphenyl) benzotriazoleCHANG CHIA-HU·Filed 2008·Granted Dec 7, 2010·2 cites·14 claims
- 0242US8163934B2Ultraviolet light absorbing ketones of 2-(2-hydroxyphenyl) benzotriazoleCHANG CHIA-HU·Filed 2010·Granted Apr 24, 2012·0 cites·12 claims
- 0338US2012329885A1Ultraviolet light absorbing compounds based on benzyl substituted 2-(2- hydroxyphenyl) benzotriazolesCHANG CHIA-HU·Filed 2011·Application pending·0 cites
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