Patent Assignment
Reel/Frame 031693/0028
Certificate of Continuation
Recorded: 2013-11-20
Pages: 2
Assignor
NEXEN INC.
Executed: 2013-06-18
Assignee
NEXEN ENERGY INC.
2900, 801-7TH AVENUE S.W., CALGARY, ALBERTA, T2P 3P7, CANADA
Covered Property
(1)
Steam Flooding with Oxygen Injection, and Cyclic Steam Stimulation with Oxygen Injection
Application:
13/628,178 →
Publication:
US 2013/0098607
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 29, 2013
From: KERR, RICHARD KELSO
To: NEXEN INC.
Reel/Frame 030499/0538 →
Change of Name
Nov 20, 2013
From: NEXEN ENERGY INC.
To: NEXEN ENERGY ULC
Reel/Frame 031642/0835 →
Change of Name
Feb 19, 2019
From: NEXEN ENERGY ULC
To: CNOOC PETROLEUM NORTH AMERICA ULC
Reel/Frame 048366/0576 →