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Rui CHEN
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Wuhan, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Glass fiber-reinforced flame retardant PBT composition and preparat...
Patent number
10,703,901
Issue date
Jul 7, 2020
Kingfa Sci & Tech Co., LTd.
Rui Chen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Engineering vehicle having ballast unloading device and ballast lev...
Patent number
10,501,096
Issue date
Dec 10, 2019
CRRC YANGTZE CO., LTD.
Wei Chen
B61 - RAILWAYS
Patents Applications
last 30 patents
Information
Patent Application
GLASS FIBER-REINFORCED FLAME RETARDANT PBT COMPOSITION AND PREPARAT...
Publication number
20180273745
Publication date
Sep 27, 2018
KINGFA SCI & TECH CO., LTD.
Rui Chen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
ENGINEERING VEHICLE HAVING BALLAST UNLOADING DEVICE AND BALLAST LEV...
Publication number
20170327130
Publication date
Nov 16, 2017
CSR YANGZE CO., LTD.
Wei CHEN
B61 - RAILWAYS