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Patent Assignment Abstract of Title
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Total Assignments: 1
Patent #:
11542425
Issue Dt:
01/03/2023
Application #:
17727063
Filing Dt:
04/22/2022
Inventors:
Yang BAI, Lingfeng WU, Jing ZHANG, Wenzhe LI, Pingya LUO, Feng DAI, Jingping LIU, Ren WANG et al
Title:
LEAK-PROOF LOST-CIRCULATION CONTROL WATER-BASED DRILLING FLUID COMPOSITION AND PREPARATION METHOD AND USE THEREOF
Assignment: 1
Reel/Frame:
059684/0202Recorded: 04/22/2022Pages: 6
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
BAI, YANG
Exec Dt:
04/15/2022
WU, LINGFENG
Exec Dt:
04/15/2022
ZHANG, JING
Exec Dt:
04/15/2022
LI, WENZHE
Exec Dt:
04/15/2022
LUO, PINGYA
Exec Dt:
04/15/2022
DAI, FENG
Exec Dt:
04/15/2022
LIU, JINGPING
Exec Dt:
04/15/2022
WANG, REN
Exec Dt:
04/15/2022
LI, DAOXIONG
Exec Dt:
04/15/2022
XU, WEN
Exec Dt:
04/15/2022
Assignee:
SOUTHWEST PETROLEUM UNIVERSITY
8 XINDU AVENUE, XINDU DISTRICT
CHENGDU CITY, SICHUAN PROVINCE, CHINA 610500
Correspondent:
SUGHRUE MION, PLLC
2000 PENNSYLVANIA AVENUE, N.W.
SUITE 9000
WASHINGTON, DC 20006

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