Patent Assignment
Reel/Frame 011899/0044
Assignment of Assignor's Interest
Recorded: 2001-06-08
Pages: 3
Assignor
HAUGLAND,S. MARK
Executed: 2001-06-07
Assignee
W-H ENERGY SERVICES,INC.
10370 RICHMOND AVENUE, SUITE 990, HOUSTON, TEXAS, 77042
Covered Property
(1)
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
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →
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: W-H ENERGY SERVICES, INC.
Reel/Frame 022520/0365 →
Assignment of Assignor's Interest
Oct 17, 2012
From: SMITH INTERNATIONAL, INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 029143/0015 →