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
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 →