Patent Assignment
Reel/Frame 012075/0302
Assignment of Assignor's Interest
Recorded: 2001-08-16
Pages: 3
Assignor
ENTEST CORP.
Executed: 2001-01-01
Assignee
NORTHLAND ENERGY CORPORATION
4600 PETRO-CANADA CENTRE, 150-6TH AVENUE S.W., CALGARY, ALBERTA, T2P 3, CANADA
Covered Properties
(2)
Apparatus and Method for Separating Components in Well Fluids
Patent:
5,900,137 →
Application:
08/671,422 →
Method for Separating Components in Well Fluids
Patent:
5,928,519 →
Application:
08/963,471 →
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 26, 1996
From: HOMAN, EDWIN DARYL
To: FOREMOST ENERGY SYSTEMS, LTD.
Reel/Frame 008106/0589 →
(Amalgamation)
Jun 23, 2003
From: NORTHLAND ENERGY CORPORATION
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 014475/0181 →
Change of Name
Jun 30, 2005
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
To: PRECISION ENERGY SERVICES LTD.
Reel/Frame 016735/0393 →
Change of Name
Apr 21, 2006
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
To: PRECISION ENERGY SERVICES LTD.
Reel/Frame 017507/0063 →
Assignment of Assignor's Interest
Apr 24, 2006
From: PRECISION ENERGY SERVICES LTD.
To: PRECISION ENERGY SERVICES ULC
Reel/Frame 017519/0043 →
Assignment of Assignor's Interest
Apr 26, 2006
From: PRECISION ENERGY SERVICES ULC
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 017527/0191 →