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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12/08/2020
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Application #:
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16752971
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Filing Dt:
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01/27/2020
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Publication #:
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Pub Dt:
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07/30/2020
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Inventors:
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Chengwen Wang, Yucheng Xue, Wei Zhou, Ruihe Wang, Jinsheng Sun, Yong Li, Changqiang Tang
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Title:
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HIGH-TEMPERATURE RETARDER SUITABLE FOR OIL AND GAS WELL CEMENTATION, PREPARATION METHOD THEREOF AND CEMENTING SLURRY
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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, CHINA 266580 |
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| NO.69, TIANFU THIRD ST., MIDDLE SECTION TIANFU AVE |
| CHENDGU HIGH TECH ZONE, FREE TRADE ZONE |
| CHENGDU, CHINA |
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| DOUGLAS J. BUCKLIN, PH.D. |
| 30 SOUTH 17TH STREET |
| 18TH FLOOR |
| PHILADELPHIA, PA 19103 |
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