IP Library › Assignment 016345/0078
Patent Assignment
Reel/Frame 016345/0078

Change of Name

Recorded: 2005-08-03 Pages: 5
Assignor
Assignee
PRECISION ENERGY SERVICES, LTD.
4200, 150-6TH AVE. SW, CALGARY, T2P 3Y7, CANADA
Covered Properties (11)
Compressive Seal and Pressure Control Arrangements for Downhole Tools
Patent: 5,067,874 →
Application: 07/508,974 →
Method and Apparatus for the Determination of Formation Fluid Flow Rates and Reservoir Deliverability
Patent: 5,337,821 →
Application: 08/014,132 →
Self-Adjusting Centralizer
Patent: 5,348,091 →
Application: 08/107,092 →
Switch Actuator and Flow Restrictor Pilot Valve Assembly for Measurement While Drilling Tools
Patent: 5,660,238 →
Application: 08/585,799 →
Method and System for Skin Effect Correction in a Multiple Transmit Frequency Induction Logging System
Patent: 5,698,982 →
Application: 08/617,418 →
Formation Density Measurement Utilizing Pulsed Neutrons
Patent: 5,900,627 →
Application: 08/878,545 →
Pulser
Patent: 6,002,643 →
Application: 08/917,624 →
Data Aquisition and Reduction Method for Multi-Component Flow
Patent: 6,028,307 →
Application: 08/939,247 →
Method and Apparatus for Acoustic Logging of Fluid Density and Wet Cement Plugs in Boreholes
Patent: 6,050,141 →
Application: 09/141,796 →
Method and Apparatus for Acoustic Logging of Fluid Density and Wet Cement Plugs in Boreholes
Patent: 6,189,383 →
Application: 09/329,215 →
Method and Apparatus for Acoustic Logging of Fluid Density and Wet Cement Plugs in Boreholes
Patent: 6,538,958 →
Application: 09/443,409 →
Related Assignments (9)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Aug 27, 2001
From: AQRIT INDUSTRIES LTD.
To: PRECISION DRILLING CORPORATION
Reel/Frame 012124/0371 →
Assignment of Assignor's Interest Dec 12, 2001
From: PRECISION DRILLING CORPORATION
To: COMPUTALOG LTD.
Reel/Frame 012365/0043 →
Assignment of Assignor's Interest Apr 12, 2005
From: COMPUTALOG RESEARCH, INC.
To: COMPUTALOG USA, INC.
Reel/Frame 016446/0373 →
Change of Name Jul 1, 2005
From: COMPUTALOG LTD.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 017275/0188 →
Merger Sep 19, 2005
From: COMPUTALOG RESEARCH, INC.
To: COMPUTALOG USA, INC.
Reel/Frame 016814/0219 →
Change of Name Feb 7, 2006
From: COMPUTALOG LTD.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 017230/0980 →
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 26, 2006
From: PRECISION ENERGY SERVICES ULC
To: WEATHERFORD CANADA PARTNERSHIP
Reel/Frame 017527/0191 →
Assignment of Assignor's Interest May 22, 2017
From: WEATHERFORD CANADA PARTNERSHIP
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 042457/0086 →