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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01/14/2020
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Application #:
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16523228
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Filing Dt:
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07/26/2019
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Inventors:
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Cheng LI, Yan CHENG, Guancheng JIANG, Yang BAI, Guojun LI, Hao ZHANG, Jinsheng SUN et al
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Title:
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STRONG PLUGGING DRILLING FLUID COMPOSITION AND PREPARATION METHOD THEREOF, 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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| DUANE MORRIS LLP |
| 30 SOUTH 17TH STREET |
| ATTN: IP DOCKETING & JIAZHONG LUO |
| PHILADELPHIA, PA 19103-4196 |
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