Patent Assignment
Reel/Frame 017519/0043
Assignment of Assignor's Interest
Recorded: 2006-04-24
Pages: 20
Assignor
PRECISION ENERGY SERVICES LTD.
Executed: 2006-03-31
Assignee
PRECISION ENERGY SERVICES ULC
1917 A.-84 AVE., EDMONTON, T6P1K1, CANADA
Covered Properties
(42)
Adjustable Bent Sub
Patent:
4,745,982 →
Application:
06/935,735 →
Adjustable Bent Sub
Patent:
4,813,497 →
Application:
07/181,648 →
Method and Apparatus for Providing a Stream of Inert Gases in Underbalanced Drilling of a Well Bore
Patent:
5,663,121 →
Application:
08/362,761 →
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 →
Grain Drying Apparatus
Patent:
6,029,367 →
Application:
09/052,534 →
Water-Based Drilling Fluid Deacidification Process and Apparatus
Patent:
6,032,747 →
Application:
09/095,118 →
Method of Treating Pressurized Drilling Fluid Returns from a Well
Patent:
6,315,813 →
Application:
09/442,450 →
Standoff Compensation for Nuclear Measurements
Patent:
6,566,649 →
Application:
09/579,971 →
Method and Apparatus for Treating Pressurized Drilling Fluid Returns from a Well
Patent:
6,413,297 →
Application:
09/626,857 →
Wellbore Resistivity Tool with Simultaneous Multiple Frequencies
Patent:
6,703,837 →
Application:
09/662,973 →
Rotating Blowout Preventer with Independent Cooling Circuits and Thrust Bearing
Standoff Compensation for Nuclear Measurements
Method of Dynamically Controlling Bottom Hole Circulation Pressure in a Wellbore
Calculating Directional Drilling Tool Face Offsets
Method and Apparatus for Providing a Stream of Pressurized Substantially Inert Gas
Well Logging System for Determining Directional Resistivity Using Multiple Transmitter-Receiver Groups Focused with Magnetic Reluctance Material
Patent:
6,577,129 →
Application:
10/053,041 →
Well Logging System for Determining Resistivity Using Multiple Transmitter-Receiver Groups Operating at Three Frequencies and at Optimized Gain
Apparatus and Method for Operating an Internal Combustion Engine to Reduce Free Oxygen Contained Within Engine Exhaust Gas
Logging-While-Drilling Apparatus and Methods for Measuring Density
Standoff Compensation for Nuclear Measurements
Perforating Gun Firing Head with Vented Block for Holding Detonator
Two way data communication with a well logging tool using a TCP-IP system
Application:
10/244,571 →
Publication:
US 2004/0051650
Method and Apparatus for Separating and Measuring Solids from Multi-Phase Well Fluids
Downhole Calibration System for Directional Sensors
Rotating Blowout Preventer with Independent Cooling Circuits and Thrust Bearing
Extended Range Emf Antenna
Downhole Clock Synchronization Apparatus and Methods for Use in a Borehole Drilling Environment
Compensated Ensemble Crystal Oscillator for Use in a Well Borehole System
Electromagnetic Borehole Telemetry System Incorporating a Conductive Borehole Tubular
Electromagnetic Mwd Telemetry System Incorporating a Current Sensing Transformer
Electromagnetic Borehole Telemetry System Incorporating a Conductive Borehole Tubular
Spectral Gamma Ray Logging-While-Drilling System
Perforating Gun Firing Head with Vented Block for Holding Detonator
Rotating Blowout Preventer with Independent Cooling Circuits and Thrust Bearing
Rotating Blowout Preventer with Independent Cooling Circuits and Thrust Bearing
Logging Tool with Response Invariant to Changes in Borehole Pressure
Gain Stabilization Apparatus and Methods for Spectral Gamma Ray Measurement Systems
Method of Dynamically Controlling Open Hole Pressure in a Wellbore Using Wellhead Pressure Control
Apparatus and Methods for Conveying and Operating Analytical Instrumentation Within a Well Borehole
Directional sensor system comprising a single axis sensor element positioned at multiple controlled orientations
Application:
60/695,748 →
Related Assignments
(22)
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
Oct 9, 1996
From: KENNETH H. WENZEL OILFIELD CONSULTING LTD.
To: GRIFFITH OIL TOOL LTD.; COMPUTALOG LTD.
Reel/Frame 008167/0447 →
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 →
Invalid Recording: See Document at Reel 012842 Frame 0121. (Re-Recorded to Correct the Serial Number Erroneously Assigned by the Pto)
Jan 19, 2002
From: THOMPSON. LARRY W.; WISLER, MACMILLAN M.; WU, JIAN-QUN
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 012519/0329 →
Invalid Recording, See Document at Reel 012519, Frame 0329. (Re-Record to Correct the Serial Number Assigned by the Pto)
Jan 19, 2002
From: THOMPSON, LARRY W.; WISLER, MACMILLAN M.; WU, JIAN-QUN
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 012519/0238 →
(Amalgamation)
Jun 23, 2003
From: NORTHLAND ENERGY CORPORATION
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 014475/0181 →
Merger
Apr 30, 2004
From: NORTHLAND ENERGY CORPORATION
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 014556/0675 →
Change of Name
Jun 24, 2005
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
To: PRECISION ENERGY SERVICES LTD.
Reel/Frame 016172/0797 →
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 26, 2006
From: PRECISION ENERGY SERVICES ULC
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 017527/0191 →
Change of Name
Aug 2, 2007
From: COMPUTALOG LTD.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP INC.
Reel/Frame 019628/0765 →
Assignment of Assignor's Interest
May 22, 2017
From: WEATHERFORD CANADA PARTNERSHIP
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 042457/0086 →
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 →