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Patents Grants
last 30 patents
Information
Patent Grant
Surface-treated copper foil
Patent number
9,647,272
Issue date
May 9, 2017
Chang Chun Petrochemical Co., Ltd.
Kuei-Sen Cheng
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Electrodeposited copper foil
Patent number
9,562,298
Issue date
Feb 7, 2017
Chang Chun Petrochemical Co., Ltd.
Jui-Chang Chou
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Electrolytic copper foil, cleaning fluid composition and method for...
Patent number
9,388,371
Issue date
Jul 12, 2016
Chang Chun Petrochemical Co., Ltd.
Kuei-Sen Cheng
B08 - CLEANING
Patents Applications
last 30 patents
Information
Patent Application
ELECTRODEPOSITED COPPER FOIL
Publication number
20150267313
Publication date
Sep 24, 2015
CHANG CHUN PETROCHEMICAL CO., LTD.
Jui-Chang Chou
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
ELECTROLYTIC COPPER FOIL, CLEANING FLUID COMPOSITION AND METHOD FOR...
Publication number
20150225678
Publication date
Aug 13, 2015
CHANG CHUN PETROCHEMICAL CO., LTD.
Kuei-Sen CHENG
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
ELECTROLYTIC COPPER FOIL, CLEANING FLUID COMPOSITION AND METHOD FOR...
Publication number
20150037606
Publication date
Feb 5, 2015
CHANG CHUN PETROCHEMICAL CO., LTD.
Kuei-Sen CHENG
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR