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Sugar Land, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
High density and high temperature emulsifier for use in an oil base...
Patent number
10,829,680
Issue date
Nov 10, 2020
CNPC USA Corporation
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Shale inhibitors used in the water-based fluid for shale formation
Patent number
10,787,602
Issue date
Sep 29, 2020
CNPC USA Corporation
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Thinner for oil-based drilling fluids
Patent number
10,723,931
Issue date
Jul 28, 2020
CNPC USA Corporation
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Thinner for oil-based drilling fluids
Patent number
10,723,929
Issue date
Jul 28, 2020
CNPC USA Corporation
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
High density and high temperature emulsifier for use in an oil base...
Patent number
10,280,357
Issue date
May 7, 2019
CNPC USA Corp.
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
High density and high temperature emulsifier for use in an oil base...
Patent number
9,909,050
Issue date
Mar 6, 2018
CNPC USA Corporation
Chun Zhou
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
SHALE INHIBITORS USED IN THE WATER-BASED FLUID FOR SHALE FORMATION
Publication number
20190382642
Publication date
Dec 19, 2019
CNPC USA CORPORATION
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
HIGH DENSITY AND HIGH TEMPERATURE EMULSIFIER FOR USE IN AN OIL BASE...
Publication number
20190256760
Publication date
Aug 22, 2019
CNPC USA CORPORATION
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
HIGH DENSITY AND HIGH TEMPERATURE EMULSIFIER FOR USE IN AN OIL BASE...
Publication number
20180142134
Publication date
May 24, 2018
CNPC USA CORPORATION
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
THINNER FOR OIL-BASED DRILLING FLUIDS
Publication number
20170145281
Publication date
May 25, 2017
CNPC USA CORPORATION
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
THINNER FOR OIL-BASED DRILLING FLUIDS
Publication number
20170145286
Publication date
May 25, 2017
CNPC USA CORPORATION
Chun Zhou
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
HIGH DENSITY AND HIGH TEMPERATURE EMULSIFIER FOR USE IN AN OIL BASE...
Publication number
20170107418
Publication date
Apr 20, 2017
CNPC USA Corp.
Chun ZHOU
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...