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Beijing, CN
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Patents Grants
last 30 patents
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Patent Grant
Star-shaped polyacrylamide copolymer and preparation method thereof...
Patent number
10,774,256
Issue date
Sep 15, 2020
China University of Geosciences, Beijing
Zhihua Luo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Electropositive production well treating fluid and method of prepar...
Patent number
7,323,434
Issue date
Jan 29, 2008
China Petroleum and Chemical Corporation
Changming Su
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
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Patent Application
STAR-SHAPED POLYACRYLAMIDE COPOLYMER AND PREPARATION METHOD THEREOF...
Publication number
20190119550
Publication date
Apr 25, 2019
China University of Geosciences, Beijing
Zhihua Luo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Electropositive production well treating fluid and method of prepar...
Publication number
20040180795
Publication date
Sep 16, 2004
Changming Su
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...