Patent Assignment
Reel/Frame 071080/0792
Assignment of Assignor's Interest
Recorded: 2025-05-12
Pages: 5
Assignors
CAO, QIAN
Executed: 2021-09-18
QI, MINGHUI
Executed: 2021-09-18
HUANG, YI
Executed: 2021-09-18
ZHANG, YEYU
Executed: 2021-09-18
PENG, XU
Executed: 2021-09-18
DU, HONGYU
Executed: 2021-09-18
LIU, HU
Executed: 2021-09-18
Assignee
KEYUAN ENGINEERING TECHNOLOGY TESTING CENTER OF SICHUAN PROVINCE
SICHUAN KEYUAN TESTING CENTER OF ENGINEERING TECHNOLOGY, CHENGDU, 610091, CHINA
Covered Property
(1)
Simulation analysis method for injection volume of alternate displacement of shale oil by carbon dioxide and nitrogen
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Apr 10, 2025
From: KEYUAN ENGINEERING TECHNOLOGY TESTING CENTER OF SICHUAN PROVINCE
To: SICHUAN KEYUAN TESTING CENTER OF ENGINEERING TECHNOLOGY CO., LTD.
Reel/Frame 070792/0076 →
Assignment of Assignor's Interest
Apr 11, 2025
From: SICHUAN KEYUAN TESTING CENTER OF ENGINEERING TECHNOLOGY CO., LTD.
To: SICHUAN INSTITUTE OF ENERGETICAL AND GEOLOGICAL SURVEY
Reel/Frame 070806/0587 →