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Patents Grants
last 30 patents
Information
Patent Grant
Method for making nano- and micro-particles for use as a proppant a...
Patent number
11,459,502
Issue date
Oct 4, 2022
CNPC USA Corporation
Lijun Lin
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Polycrystalline diamond cutter with improved geometry for cooling a...
Patent number
10,907,416
Issue date
Feb 2, 2021
CNPC USA Corporation
Chris Cheng
E21 - EARTH DRILLING MINING
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
Method for a fracturing fluid system at high temperatures
Patent number
10,815,419
Issue date
Oct 27, 2020
CNPC USA Corporation
Lulu Song
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for a fracturing fluid system at high temperatures
Patent number
10,450,501
Issue date
Oct 22, 2019
CNPC USA Corporation
Lulu Song
E21 - EARTH DRILLING MINING
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
Method for a fracturing fluid system at high temperatures
Patent number
10,066,151
Issue date
Sep 4, 2018
CNPC USA Corporation
Lulu Song
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for a fracturing fluid system at high temperatures
Patent number
9,963,630
Issue date
May 8, 2018
CNPC USA Corporation
Lulu Song
E21 - EARTH DRILLING MINING
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
METHOD FOR MAKING NANO- AND MICRO-PARTICLES FOR USE AS A PROPPANT A...
Publication number
20240150642
Publication date
May 9, 2024
CNPC USA CORPORATION
Lijun Lin
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
METHOD FOR MAKING NANO- AND MICRO-PARTICLES FOR USE AS A PROPPANT A...
Publication number
20230029914
Publication date
Feb 2, 2023
CNPC USA CORPORATION
Lijun Lin
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
POLYCRYSTALLINE DIAMOND CUTTER WITH IMPROVED GEOMETRY FOR COOLING A...
Publication number
20200340303
Publication date
Oct 29, 2020
CNPC USA CORPORATION
Chris CHENG
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR MAKING NANO- AND MICRO-PARTICLES FOR USE AS A PROPPANT A...
Publication number
20200216750
Publication date
Jul 9, 2020
CNPC USA CORPORATION
Lijun Lin
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
METHOD FOR A FRACTURING FLUID SYSTEM AT HIGH TEMPERATURES
Publication number
20200048538
Publication date
Feb 13, 2020
CNPC USA CORPORATION
Lulu Song
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
METHOD FOR A FRACTURING FLUID SYSTEM AT HIGH TEMPERATURES
Publication number
20190256765
Publication date
Aug 22, 2019
CNPC USA CORPORATION
Lulu Song
E21 - EARTH DRILLING MINING
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
METHOD FOR A FRACTURING FLUID SYSTEM AT HIGH TEMPERATURES
Publication number
20180223174
Publication date
Aug 9, 2018
CNPC USA CORPORATION
Lulu Song
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
METHOD FOR A FRACTURING FLUID SYSTEM AT HIGH TEMPERATURES
Publication number
20170137699
Publication date
May 18, 2017
CNPC USA Corp.
Lulu SONG
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...