Patent Assignment
Reel/Frame 017230/0977
Merger
Recorded: 2006-02-07
Pages: 3
Assignor
COMPUTALOG U.S.A., INC.
Executed: 2004-12-31
Assignee
PRECISION ENERGY SERVICES, INC.
363 N. SAM HOUSTON PARKWAY EAST, SUITE 1700, HOUSTON, TEXAS, 77060
Covered Properties
(3)
Multiple Transmit Frequency Induction Logging System with Closed Loop Conversion Circuitry for Phase and Gain Variation Elimination
Patent:
5,500,597 →
Application:
08/099,621 →
Inferential Measurement of Photoelectric Absorption Cross-Section of Geologic Formations from Neutron-Induced, Gamma-Ray Spectroscopy
Patent:
6,150,655 →
Application:
09/036,287 →
Lwd Resistivity Device with Inner Transmitters and Outer Receivers, and Azimuthal Sensitivity
Patent:
6,377,050 →
Application:
09/398,953 →
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 30, 1993
From: TICKELL, EDWARD BRYANT, JR.
To: COMPUTALOG RESEARCH, INC.
Reel/Frame 006645/0252 →
Assignment of Assignor's Interest
Jul 30, 1993
From: SCHOCH, PETER J.
To: COMPUTALOG RESEARCH, INC.
Reel/Frame 006645/0241 →
Assignment of Assignor's Interest
Jul 30, 1993
From: MOSELEY, LONNIE MAX
To: COMPUTALOG RESEARCH, INC.
Reel/Frame 006645/0246 →
Assignment of Assignor's Interest
Jul 30, 1993
From: BLOOMFIELD, DWIGHT A.
To: COMPUTASLOG RESEARCH, INC.
Reel/Frame 006645/0249 →
Assignment of Assignor's Interest
Mar 6, 1998
From: ODOM, RICHARD C.; BAILEY, SHAWN M.
To: COMPUTALOG RESEARCH, INC.
Reel/Frame 009055/0811 →
Assignment of Assignor's Interest
Sep 14, 1999
From: CHEMALI, ROLAND; DUMMER, RUSSELL L.
To: COMPUTALOG U.S.A., INC.
Reel/Frame 010349/0296 →
Assignment of Assignor's Interest
Apr 12, 2005
From: COMPUTALOG RESEARCH, INC.
To: COMPUTALOG USA, INC.
Reel/Frame 016446/0373 →
Assignment of Assignor's Interest
Feb 28, 2018
From: PRECISION ENERGY SERVICES, INC.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 045062/0618 →