Patent Assignment
Reel/Frame 016735/0393
Change of Name
Recorded: 2005-06-30
Pages: 4
Assignor
PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Executed: 2005-04-04
Assignee
PRECISION ENERGY SERVICES LTD.
4200,150-6TH AVENUE, S.W. CALGARY, ALBERTA, T2P 3Y7, CANADA
Covered Properties
(12)
Apparatus and Method for Separating Components in Well Fluids
Patent:
5,900,137 →
Application:
08/671,422 →
Recovery of Gas from Drilling Fluid Returns in Underbalanced Drilling
Patent:
5,775,442 →
Application:
08/741,201 →
Method for Separating Components in Well Fluids
Patent:
5,928,519 →
Application:
08/963,471 →
Method of Treating Pressurized Drilling Fluid Returns from a Well
Patent:
6,315,813 →
Application:
09/442,450 →
Method and Apparatus for Treating Pressurized Drilling Fluid Returns from a Well
Patent:
6,413,297 →
Application:
09/626,857 →
Method of Dynamically Controlling Bottom Hole Circulation Pressure in a Wellbore
Method and Apparatus for Providing a Stream of Pressurized Substantially Inert Gas
Apparatus and Method for Operating an Internal Combustion Engine to Reduce Free Oxygen Contained Within Engine Exhaust Gas
Method and Device for the Measurement of the Drift of a Borehole
Method and Apparatus for Separating and Measuring Solids from Multi-Phase Well Fluids
Method and Apparatus to Control the Rate of Flow of a Fluid Through a Conduit
Method for the Circulation of Gas When Drilling or Working a Well
Related Assignments
(21)
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 →
Assignment of Assignor's Interest
Aug 16, 2001
From: ENTEST CORP.
To: NORTHLAND ENERGY CORPORATION
Reel/Frame 012075/0302 →
Assignment of Assignor's Interest
Oct 24, 2001
From: KRILL, ROSS MICHAEL
To: NORTHLAND ENERGY CORPORATION
Reel/Frame 012286/0064 →
(Amalgamation)
Jun 23, 2003
From: NORTHLAND ENERGY CORPORATION
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 014475/0181 →
Assignment of Assignor's Interest
Mar 24, 2004
From: STEINER, ADRIAN; GROSSMAN, MIKE FREDRIC
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 015135/0504 →
Assignment of Assignor's Interest
Mar 31, 2005
From: STEINER, ADRIAN; MCALARY, RICHARD ALLAN; KRILL, ROSS MICHAEL
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 016411/0595 →
Change of Name
Mar 6, 2006
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
To: PRECISION ENERGY SERVICES LTD.
Reel/Frame 017251/0762 →
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 21, 2006
From: PRECISION ENERGY SERVICES LTD.
To: PRECISION ENERGY SERVICES ULC
Reel/Frame 017507/0031 →
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 →
Assignment of Assignor's Interest
Jan 9, 2009
From: PRECISION ENERGY SERVICES ULC
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 022263/0772 →
Change of Name
Jan 9, 2009
From: PRECISION ENERGY SERVICES LTD
To: PRECISION ENERGY SERVICES ULC
Reel/Frame 022254/0599 →
Security Interest
Dec 18, 2019
From: WEATHERFORD TECHNOLOGY HOLDINGS LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY INC.
To: WELLS FARGO BANK NATIONAL ASSOCIATION AS AGENT
Reel/Frame 051891/0089 →
Assignment of Assignor's Interest
Dec 23, 2019
From: WEATHERFORD CANADA PARTNERSHIP
To: WEATHERFORD CANADA LTD.
Reel/Frame 051352/0508 →
Security Interest
Dec 26, 2019
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS ADMINISTRATIVE AGENT
Reel/Frame 051419/0140 →
Security Interest
Aug 28, 2020
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 054288/0302 →
Release of Security Interest
Aug 28, 2020
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
Reel/Frame 053838/0323 →
Security Interest
Oct 1, 2021
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 057683/0706 →
Release of Security Interest
Oct 1, 2021
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
Reel/Frame 057683/0423 →
Patent Security Interest Assignment Agreement
Apr 26, 2023
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 063470/0629 →