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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12/29/2020
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Application #:
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16746230
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Filing Dt:
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01/17/2020
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Inventors:
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Guancheng JIANG, Xiaoxiao NI, Yinbo HE, Lili YANG, Tengfei DONG, Kun ZHANG, Xuwu LUO, Li ZHAO et al
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Title:
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MODIFIED SILICON DIOXIDE MATERIAL OF FLUOROCARBON ACTIVE AGENT TYPE SUPER-AMPHIPHOBIC CUTTING-CARRYING AGENT SUITABLE FOR WATER-BASED DRILLING FLUID AND PREPARATION METHOD THEREOF
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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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| YIZHOU LIU |
| CALFEE, HALTER & GRISWOLD LLP |
| 1405 EAST SIXTH STREET |
| CLEVELAND, OH 44114-1607 |
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