Patent Assignment Details
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| Reel/Frame: | 041584/0252 | |
| Pages: | 4 |
| | Recorded: | 03/15/2017 | | |
| Attorney Dkt #: | 35742/04038 |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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06/20/2017
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Application #:
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15400555
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Filing Dt:
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01/06/2017
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Title:
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COMPOSITION COMPRISING A NANOMETER FILM STRUCTURED RESERVOIR PROTECTING AGENT AND A WATER BLOCK PREVENTING AGENT, AND DRILLING FLUID CONTAINING THE SAME AND USE THEREOF FOR DRILLING IN LOW-PERMEABILITY RESERVOIRS
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Assignee
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| NO. 66, CHANGJIANG WEST ROAD, HUANGDAO DISTRICT |
| QINGDAO, SHANDONG, CHINA |
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Correspondence name and address
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CALFEE HALTER & GRISWOLD LLP
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THE CALFEE BUILDING, 1405 EAST SIXTH STREET
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CLEVELAND, OH 44114-1607
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