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Chengdu, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Nanographene and preparation method and use thereof and oil-based d...
Patent number
11,873,444
Issue date
Jan 16, 2024
SOUTHWEST PETROLEUM UNIVERSITY
Yang Bai
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Leak-proof lost-circulation control water-based drilling fluid comp...
Patent number
11,542,425
Issue date
Jan 3, 2023
SOUTHWEST PETROLEUM UNIVERSITY
Yang Bai
E21 - EARTH DRILLING MINING
Information
Patent Grant
Preparation method of fully adaptive modified nanographene plugging...
Patent number
11,525,079
Issue date
Dec 13, 2022
SOUTHWEST PETROLEUM UNIVERSITY
Yang Bai
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Pressure-bearing plugging agent and preparation method and use thereof
Patent number
11,453,814
Issue date
Sep 27, 2022
SOUTHWEST PETROLEUM UNIVERSITY
Yang Bai
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Fiber silica composite microsphere for shale stratum, drilling flui...
Patent number
11,345,841
Issue date
May 31, 2022
SOUTHWEST PETROLEUM UNIVERSITY
Yang Bai
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
NANOGRAPHENE AND PREPARATION METHOD AND USE THEREOF AND OIL-BASED D...
Publication number
20240043735
Publication date
Feb 8, 2024
SOUTHWEST PETROLEUM UNIVERSITY
Yang BAI
C01 - INORGANIC CHEMISTRY
Information
Patent Application
ANTI-SLOUGHING DRILLING FLUID AND USE THEREOF
Publication number
20240043736
Publication date
Feb 8, 2024
SOUTHWEST PETROLEUM UNIVERSITY
Yang BAI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
PRESSURE-BEARING PLUGGING AGENT AND PREPARATION METHOD AND USE THEREOF
Publication number
20220267662
Publication date
Aug 25, 2022
SOUTHWEST PETROLEUM UNIVERSITY
Yang BAI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...