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Qinghong Xu
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Beijing, CN
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Patents Grants
last 30 patents
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Patent Grant
Catalyst for polymerization of olefins comprising thienyl-substitut...
Patent number
8,541,332
Issue date
Sep 24, 2013
PetroChina Company Limited
Zhifei Li
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
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Patent Application
CATALYST FOR POLYMERIZATION OF OLEFINS COMPRISING THIENYL-SUBSTITUT...
Publication number
20130131292
Publication date
May 23, 2013
Petrochina Company Limited
Zhifei Li
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...