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Beijing, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Thermal stimuli-responsive surfactants for enhanced oil recovery
Patent number
12,139,664
Issue date
Nov 12, 2024
Saudi Arabian Oil Company
Limin Xu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Synthesis of a cationic surfmer and its copolymers for enhanced oil...
Patent number
12,049,529
Issue date
Jul 30, 2024
Saudi Arabian Oil Company
Xuan Zhang
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Synthesis of a cationic surfmer and its copolymers for enhanced oil...
Patent number
11,697,700
Issue date
Jul 11, 2023
Saudi Arabian Oil Company
Xuan Zhang
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Surfactant mixtures used during chemical enhanced oil recovery and...
Patent number
11,254,855
Issue date
Feb 22, 2022
Saudi Arabian Oil Company
Limin Xu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for treating waste saline water produced in production proce...
Patent number
9,802,848
Issue date
Oct 31, 2017
Wanhua Chemical (Ningbo) Co., Ltd.
Hongke Zhang
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method of preparing polymethylene-polyphenyl-polyamine
Patent number
7,893,301
Issue date
Feb 22, 2011
Ningbo Wanhua Polyurethanes Co., Ltd.
Jiansheng Ding
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
THERMAL STIMULI-RESPONSIVE SURFACTANTS FOR ENHANCED OIL RECOVERY
Publication number
20240294822
Publication date
Sep 5, 2024
Saudi Arabian Oil Company
Limin Xu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
CONCENTRATED OPPOSITELY CHARGED SURFACTANTS USED FOR CHEMICAL ENHAN...
Publication number
20240124762
Publication date
Apr 18, 2024
Saudi Arabian Oil Company
Ming Han
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
VISUAL METHOD FOR GELATION DETECTION
Publication number
20240102931
Publication date
Mar 28, 2024
Saudi Arabian Oil Company
Lyla Almaskeen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
SYNTHESIS OF A CATIONIC SURFMER AND ITS COPOLYMERS FOR ENHANCED OIL...
Publication number
20230303744
Publication date
Sep 28, 2023
Saudi Arabian Oil Company
Xuan Zhang
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
SYNTHESIS OF A CATIONIC SURFMER AND ITS COPOLYMERS FOR ENHANCED OIL...
Publication number
20220025090
Publication date
Jan 27, 2022
Saudi Arabian Oil Company
Xuan Zhang
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
SURFACTANT MIXTURES USED DURING CHEMICAL ENHANCED OIL RECOVERY AND...
Publication number
20210147744
Publication date
May 20, 2021
Saudi Arabian Oil Company
Limin Xu
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR TREATING WASTE SALINE WATER PRODUCED IN PRODUCTION PROCE...
Publication number
20120168375
Publication date
Jul 5, 2012
Beijing University of Chemical Technology
Hongke Zhang
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method of preparing polymethylene-polyphenyl-polyamine
Publication number
20080249261
Publication date
Oct 9, 2008
Jiansheng Ding
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...