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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07/31/2018
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Application #:
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14933344
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Filing Dt:
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11/05/2015
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Publication #:
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Pub Dt:
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06/09/2016
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Inventors:
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Yonggang LIU, Xiaojun LI, Fangpo LI
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Title:
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CONNECTION STRUCTURE BETWEEN PIPE BODY AND JOINT OF ALUMINUM ALLOY DRILL PIPE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 9 DONGZHIMEN NORTH STREET, DONGCHENG DISTRICT |
| BEIJING, CHINA |
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| NO. 32, DIANZI ER ROAD |
| XI AN, SHAN XI, CHINA |
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| HOFFMAN WARNICK LLC |
| 540 BROADWAY |
| 4TH FLOOR |
| ALBANY, NY 12207 |
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