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last 30 patents
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Patent Grant
Preparation method of polyimide
Patent number
10,414,868
Issue date
Sep 17, 2019
CHANGCHUN HIPOLYKING CO., LTD.
Xin Zhang
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
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Patent Application
PREPARATION METHOD OF POLYIMIDE
Publication number
20150126704
Publication date
May 7, 2015
Changchun Hipolyking Co., LTD
Xin Zhang
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...