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Patent Assignment Abstract of Title
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Total Assignments: 1
Patent #:
11578251
Issue Dt:
02/14/2023
Application #:
17696549
Filing Dt:
03/16/2022
Publication #:
20220204833
Pub Dt:
06/30/2022
Inventors:
Yinbo He, Guancheng Jiang, Lili Yang, Tengfei Dong, Bin Tan, Rongchao Cheng, He Shi et al
Title:
AMPHIPHILIC BLOCK POLYMER ULTRALOW-PERMEABILITY AGENT AND INTELLIGENT TEMPORARY PLUGGING TYPE WATER-BASED DRILLING FLUID
Assignment: 1
Reel/Frame:
060474/0754Recorded: 07/11/2022Pages: 6
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
HE, YINBO
Exec Dt:
06/17/2021
JIANG, GUANCHENG
Exec Dt:
06/17/2021
YANG, LILI
Exec Dt:
06/17/2021
DONG, TENGFEI
Exec Dt:
06/17/2021
TAN, BIN
Exec Dt:
06/17/2021
CHENG, RONGCHAO
Exec Dt:
06/17/2021
SHI, HE
Exec Dt:
06/17/2021
ZHANG, JIANGUO
Exec Dt:
06/17/2021
GENG, TIE
Exec Dt:
06/17/2021
LUO, JIANSHENG
Exec Dt:
06/17/2021
JIA, DONGMIN
Exec Dt:
06/17/2021
WANG, KAI
Exec Dt:
06/17/2021
XIE, CHUNLIN
Exec Dt:
06/17/2021
LI, WUQUAN
Exec Dt:
06/17/2021
LI, XIAOQING
Exec Dt:
06/17/2021
Assignee:
CHINA UNIVERSITY OF PETROLEUM (BEIJING)
NO. 18 FUXUE ROAD
CHANGPING DISTRICT
BEIJING, CHINA 102249
Correspondent:
YIZHOU LIU
CALFEE, HALTER & GRISWOLD LLP
1405 EAST SIXTH STREET
CLEVELAND, OH 44144-1607

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