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US Patent 7875654 System for forming janus particles

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Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
78756541
Patent Inventor Names
Shan Jiang1
Steve Granick1
Liang Hong1
Date of Patent
January 25, 2011
1
Patent Application Number
116906711
Date Filed
March 23, 2007
1
Patent Citations Received
‌
US Patent 12091611 Enhanced oil recovery with Janus nanoparticles
2
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US Patent 11708272 Bulk synthesis of Janus nanomaterials
3
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US Patent 11708274 Synthesis of polyethylenimine-silica janus nanoparticles
4
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US Patent 11773715 Injecting multiple tracer tag fluids into a wellbore
‌
US Patent 11911761 Microfluidic chip with mixed porosities for reservoir modeling
5
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US Patent 11933937 Nanofluidic chips as micromodels for carbonate reservoirs
6
‌
US Patent 12000278 Determining oil and water production rates in multiple production zones from a single production well
7
‌
US Patent 11660595 Microfluidic chip with multiple porosity regions for reservoir modeling
8
Patent Primary Examiner
‌
Ling Siu Choi
1
Patent abstract

The invention is a method of forming Janus particles, that includes forming an emulsion that contains initial particles, a first liquid, and a second liquid; solidifying the first liquid to form a solid that contains at least a portion of the initial particles on a surface of the solid; and treating the exposed particle sides with a first surface modifying agent, to form the Janus particles. Each of the initial particles on the surface has an exposed particle side and a blocked particle side.

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