Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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07/02/2019
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Application #:
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15874438
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Filing Dt:
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01/18/2018
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Publication #:
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Pub Dt:
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07/19/2018
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Inventors:
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Guancheng JIANG, Deli GAO, Guangchang MA, Jinsheng SUN, Xi WANG, Xiaolin PU, Xianzhu WU et al
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Title:
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USE OF DUAL-CATION FLUOROCARBON SURFACTANT AS AMPHIPHOBIC WETTABILITY REVERSAL AGENT IN DRILLING FLUID
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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NO.18 FUXUE ROAD, CHANGPING DISTRICT |
BEIJING, CHINA 102249 |
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CALFEE HALTER & GRISWOLD LLP |
THE CALFEE BUILDING, 1405 EAST SIXTH STREET |
CLEVELAND, OH 44114-1607 |
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