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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11/26/2019
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Application #:
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16285783
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Filing Dt:
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02/26/2019
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Inventors:
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Yang Bai, Pingya Luo, Jinsheng Sun, Guancheng Jiang, Jiading Deng, Yan Cheng, Guojun Li
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Title:
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EXPANDABLE PLUGGING AGENT AND PREPARATION METHOD THEREOF, MICRO-CAPSULE PLUGGING AGENT, WATER-BASED DRILLING FLUID, AND USE THEREOF
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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8 XINDU AVENUE |
XINDU DISTRICT |
CHENGDU CITY, SICHUAN PROVINCE, CHINA 610500 |
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VOLPE AND KOENIG, P.C. |
30 S. 17TH STREET |
18TH FLOOR |
PHILADELPHIA, PA 19103 |
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