Patent Assignment
Reel/Frame 070806/0587
Assignment of Assignor's Interest
Recorded: 2025-04-11
Pages: 3
Assignor
SICHUAN KEYUAN TESTING CENTER OF ENGINEERING TECHNOLOGY CO., LTD.
Executed: 2025-04-03
Assignee
SICHUAN INSTITUTE OF ENERGETICAL AND GEOLOGICAL SURVEY
NO. 38, QINGHUA ROAD, QINGYANG DISTRICT, CHENGDU, 610072, 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
May 12, 2025
From: CAO, QIAN; QI, MINGHUI; HUANG, YI; ZHANG, YEYU
To: KEYUAN ENGINEERING TECHNOLOGY TESTING CENTER OF SICHUAN PROVINCE
Reel/Frame 071080/0792 →