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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07/27/2021
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Application #:
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17015903
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Filing Dt:
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09/09/2020
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Publication #:
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Pub Dt:
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06/24/2021
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Inventors:
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Xianbin HUANG, Kaihe LV, Yingrui BAI, Jiafeng JIN, Jinsheng SUN, Jingping LIU, Jintang WANG
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Title:
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ENVIRONMENT-FRIENDLY HIGH-TEMPERATURE RESISTANT WATER-BASED DRILLING FLUID PLUGGING ANTI-SLOUGHING AGENT, PREPARATION METHOD THEREOF AND THE WATER-BASED 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. 66, CHANGJIANG WEST ROAD |
| HUANGDAO DISTRICT, QINGDAO |
| SHANDONG, CHINA 226580 |
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| YIZHOU LIU |
| CALFEE, HALTER & GRISWOLD LLP |
| 1405 EAST SIXTH STREET |
| CLEVELAND, OH 44114-1607 |
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