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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12/15/2020
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Application #:
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16675765
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Filing Dt:
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11/06/2019
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Publication #:
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Pub Dt:
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11/26/2020
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Inventors:
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Yang BAI, Pingya LUO, Jinsheng SUN, Guancheng JIANG, Yan CHENG
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Title:
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Multi-Functional Weighting Agent for Drilling Fluid and Preparation Method Thereof, and 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, SICHUAN, CHINA 610500 |
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| JIAZHONG LUO |
| 30 SOUTH 17TH STREET |
| DUANE MORRIS LLP |
| PHILADELPHIA, PA 19103-4196 |
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