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Patent Assignment Abstract of Title
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Total Assignments: 1
Patent #:
Issue Dt:
08/29/2017
Application #:
15466032
Filing Dt:
03/22/2017
Inventors:
Shuanglei PENG, Zhengqiang DENG, Deli GAO, Yawei SHI, Chunlei WANG, Guancheng JIANG et al
Title:
ADDITIVE COMPOSITION SUITABLE FOR VISCOSITY REDUCTION OF OIL-BASED DRILLING FLUID, OIL-BASED DRILLING FLUID AND USE THEREOF
Assignment: 1
Reel/Frame:
041888/0752Recorded: 04/06/2017Pages: 6
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
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03/21/2017
Assignee:
NO.18 FUXUE ROAD, CHANGPING DISTRICT
BEIJING, CHINA
Correspondent:
CALFEE HALTER & GRISWOLD LLP
THE CALFEE BUILDING, 1405 EAST SIXTH STREET
CLEVELAND, OH 44114

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