Patent Assignment
Reel/Frame 031642/0321
Change of Name
Recorded: 2013-11-20
Pages: 2
Assignor
NEXEN ENERGY INC.
Executed: 2013-06-18
Assignee
NEXEN ENERGY ULC
2900, 801-7TH AVENUE S.W., CALGARY, ALBERTA, T2P 3P7, CANADA
Covered Property
(1)
Hydraulic Fracturing Process for Deviated Wellbores
Application:
13/683,610 →
Publication:
US 2014/0096950
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 10, 2013
From: PYECROFT, JAMES FREDERICK; CHERNIK, PETER
To: NEXEN INC.
Reel/Frame 030574/0360 →
Certificate of Continuation
Nov 20, 2013
From: NEXEN INC.
To: NEXEN ENERGY INC.
Reel/Frame 031692/0962 →
Change of Name
Feb 19, 2019
From: NEXEN ENERGY ULC
To: CNOOC PETROLEUM NORTH AMERICA ULC
Reel/Frame 048366/0576 →