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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12/19/2017
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Application #:
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15368037
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Filing Dt:
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12/02/2016
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Inventors:
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Zhengsong QIU, Hanyi ZHONG, Yongjun ZHANG, Xin ZHAO, Wei'an HUANG, Guowe ZHOU
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Title:
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ENCAPSULATING AGENT AND PREPARING METHOD THEREOF, AND DRILLING FLUID FOR PETROLEUM DRILLING
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| NO. 66, CHANGJIANG WEST ROAD, HUANGDAO DISTRICT |
| QINGDAO, SHANDONG, CHINA 266580 |
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| CHRISTOPHER JACKSON |
| CALFEE, HALTER & GRISWOLD LLP |
| 1405 EAST SIXTH STREET |
| CLEVELAND, OH 44114 |
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