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Patents Grants
last 30 patents
Information
Patent Grant
Starch-containing microsphere and preparation method and use thereof
Patent number
11,891,458
Issue date
Feb 6, 2024
China Petroleum and Chemical Corporation
Chao Yang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Associated copolymer and preparation method thereof, and drilling f...
Patent number
9,719,005
Issue date
Aug 1, 2017
China Petroleum and Chemical Corporation
Chao Yang
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
STARCH-CONTAINING MICROSPHERE AND PREPARATION METHOD AND USE THEREOF
Publication number
20220227893
Publication date
Jul 21, 2022
China Petroleum and Chemical Corporation
Chao YANG
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
STARCH-CONTAINING MICROSPHERE AND PREPARATION METHOD AND USE THEREOF
Publication number
20210032373
Publication date
Feb 4, 2021
China Petroleum and Chemical Corporation
Chao YANG
E21 - EARTH DRILLING MINING
Information
Patent Application
Associated Copolymer and Preparation Method Thereof, and Drilling F...
Publication number
20170114264
Publication date
Apr 27, 2017
China Petroleum and Chemical Corporation
Chao YANG
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...