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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11/02/2021
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Application #:
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16748144
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Filing Dt:
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01/21/2020
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Publication #:
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Pub Dt:
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06/03/2021
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Inventors:
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Yang Bai, Pingya Luo, Guojun Li, Cheng Li, Hao Zhang, Yan Cheng
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Title:
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NANOMETER PLUGGING WATER-BASED DRILLING FLUID AND PREPARATION METHOD 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 |
| SICHUAN PROVINCE |
| CHENGDU CITY, CHINA 610500 |
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| DOUGLAS J. BUCKLIN, PH.D. |
| 30 SOUTH 17TH STREET |
| 18TH FLOOR |
| PHILADELPHIA, PA 19103 |
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