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Patent Assignment Abstract of Title
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Total Assignments: 1
Patent #:
Issue Dt:
07/02/2019
Application #:
16288721
Filing Dt:
02/28/2019
Inventors:
Yang Bai, Pingya Luo, Jinsheng Sun, Guancheng Jiang, Jiading Deng, Yan Cheng, Guojun Li
Title:
MICRO-NANO COMPOSITE PLUGGING AGENT FOR DRILLING FLUID AND PREPARATION METHOD THEREOF, AND DRILLING FLUID AND USE THEREOF
Assignment: 1
Reel/Frame:
048475/0367Recorded: 02/28/2019Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
02/28/2019
Exec Dt:
02/28/2019
Exec Dt:
02/28/2019
Exec Dt:
02/28/2019
Exec Dt:
02/28/2019
Exec Dt:
02/28/2019
Exec Dt:
02/28/2019
Assignee:
8 XINDU AVENUE, XINDU DISTRICT
CHENGDU CITY, SICHUAN PROVINCE, CHINA 610500
Correspondent:
VOLPE AND KOENIG, P.C.
30 SOUTH 17TH STREET, 18TH FLOOR
PHILADELPHIA, PA 19103

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