Patent Assignment
Reel/Frame 045750/0269
Assignment of Assignor's Interest
Recorded: 2018-05-09
Pages: 5
Assignor
LEHMANN, JURGEN SIEGFRIED
Executed: 2018-04-05
Assignee
NEXEN ENERGY ULC
801 7TH AVENUE SW, ALBERTA, T2P 3P7, CANADA
Covered Property
(1)
Method for Increasing Gas Recovery in Fractures Proximate Fracture Treated Wellbores
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
May 9, 2018
From: NEXEN ENERGY INC.
To: NEXEN ENERGY ULC
Reel/Frame 045750/0382 →
Change of Name
May 9, 2018
From: NEXEN INC.
To: NEXEN ENERGY INC.
Reel/Frame 046110/0033 →
Assignment of Assignor's Interest
May 9, 2018
From: EL-NAGGAR, OMAR
To: NEXEN INC.
Reel/Frame 046110/0035 →
Assignment of Assignor's Interest
May 9, 2018
From: PYECROFT, JAMES
To: NEXEN INC.
Reel/Frame 046707/0414 →
Change of Name
Feb 19, 2019
From: NEXEN ENERGY ULC
To: CNOOC PETROLEUM NORTH AMERICA ULC
Reel/Frame 048366/0576 →