Patent Assignment
Reel/Frame 022520/0365
Release of Security Interest
Recorded: 2009-04-08
Pages: 5
Assignor
Assignee
W-H ENERGY SERVICES, INC.
2000 W. SAM HOUSTON PKWY S., SUITE 500, HOUSTON, TEXAS, 77041
Covered Properties
(3)
Technique for Signal Detection Using Adaptive Filtering in Mud Pulse Telemetry
Patent:
6,308,562 →
Application:
09/469,989 →
Method of and apparatus for independently determining the resistivity and/or dielectric constant of an earth formation
Patent:
6,366,858 →
Application:
09/608,205 →
Method of Determining Resistivity of an Earth Formation with Phase Resistivity Evaluation Based on a Phase Shift Measurement and Attenuation Resistivity Evaluation Based on an Attenuation Measurement and the Phase Shift Measurement
Related Assignments
(11)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 22, 1999
From: ABDALLAH, ALI H.; BEATTIE, MARK S.
To: W-H ENERGY SYSTEMS, INC.
Reel/Frame 010478/0579 →
Assignment of Assignor's Interest
Jun 30, 2000
From: HAUGLAND, S. MARK
To: W-H ENERGY SERVICES, INC.
Reel/Frame 010941/0062 →
Security Agreement
Dec 22, 2000
From: PATHFINDER ENERGY SERVICES, INC.
To: WELLS FARGO BANK TEXAS, AS ADMINISTRATIVE AGENT
Reel/Frame 011461/0670 →
Assignment of Assignor's Interest
Jun 8, 2001
From: HAUGLAND,S. MARK
To: W-H ENERGY SERVICES,INC.
Reel/Frame 011899/0044 →
Security Interest
Nov 14, 2003
From: W-H ENERGY SERVICES, INC.
To: WELLS FARGO BANK TEXAS, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 014692/0797 →
Security Agreement
Feb 24, 2005
From: W-H ENERGY SERVICES, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 015698/0530 →
Corrective Assignment to Correct the Name of Receiving Party Previously Recorded on Reel 010478 Frame 0579. Assignor(S) Hereby Confirms the Assignment of Assignor's Interest to W-H Energy Services, Inc..
Feb 2, 2009
From: ABDALLAH, ALI H; BEATTIE, MARK S
To: W-H ENERGY SERVICES, INC.
Reel/Frame 022177/0964 →
Assignment of Assignor's Interest
Feb 10, 2009
From: W-H ENERGY SERVICES, INC.
To: SMITH INTERNATIONAL, INC.
Reel/Frame 022231/0083 →
Release of Security Interest
Apr 7, 2009
From: WELLS FARGO BANK, NATIONAL ASSOCIATION (AS ADMINISTRATIVE AGENT)
To: W-H ENERGY SERVICES, INC.
Reel/Frame 022510/0751 →
Release of Security Interest
Apr 8, 2009
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SUCCESSOR BY MERGER TO WELLS FARGO BANK TEXAS, N.A. (AS ADMINISTRATIVE AGENT)
To: PATHFINDER ENERGY SERVICES, INC.
Reel/Frame 022520/0291 →
Assignment of Assignor's Interest
Oct 17, 2012
From: SMITH INTERNATIONAL, INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 029143/0015 →