Patent Assignment
Reel/Frame 016814/0219
Merger
Recorded: 2005-09-19
Pages: 4
Assignor
COMPUTALOG RESEARCH, INC.
Executed: 1997-03-03
Assignee
COMPUTALOG USA, INC.
363 N. SAM HOUSTON PARKWAY EAST, SUITE 1700, HOUSTON, TEXAS, 77060
Covered Property
(1)
Method and System for Skin Effect Correction in a Multiple Transmit Frequency Induction Logging System
Patent:
5,698,982 →
Application:
08/617,418 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jul 1, 2005
From: COMPUTALOG LTD.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 017275/0188 →
Change of Name
Aug 3, 2005
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
To: PRECISION ENERGY SERVICES, LTD.
Reel/Frame 016345/0078 →
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 →