IP Library Assignment 041671/0044
Patent Assignment
Reel/Frame 041671/0044

Certificate of Continuation

Recorded: 2017-02-09 Pages: 2
Assignor
NEXEN INC.
Executed: 2013-06-18
Assignee
NEXEN ENERGY INC.
2900, 801 - 7TH AVENUE S.W., CALGARY, T2P 3P7, CANADA
Covered Property (1)
Steam Assisted Gravity Drainage Processes with the Addition of Oxygen
Patent: 9,644,468 →
Application: 14/582,819 →
Publication: US 2016/0177692
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 9, 2017
From: KERR, RICHARD KELSO
To: NEXEN INC.
Reel/Frame 041217/0041 →
Change of Name Feb 9, 2017
From: NEXEN ENERGY INC.
To: NEXEN ENERGY ULC
Reel/Frame 041217/0407 →
Change of Name Feb 19, 2019
From: NEXEN ENERGY ULC
To: CNOOC PETROLEUM NORTH AMERICA ULC
Reel/Frame 048366/0576 →