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Patent Assignment Abstract of Title
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Total Assignments: 7
Patent #:
Issue Dt:
08/30/2005
Application #:
10368257
Filing Dt:
02/18/2003
Publication #:
Pub Dt:
08/19/2004
Inventor:
Graham McElhinney
Title:
PASSIVE RANGING TECHNIQUES IN BOREHOLE SURVEYING
Assignment: 1
Reel/Frame:
013785/0853Recorded: 02/18/2003Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
02/18/2003
Assignee:
15151 SOMMERMEYER ST.
HOUSTON, TEXAS 77041
Correspondent:
STUART J. FORD
15151 SOMMERMEYER ST.
HOUSTON, TX 77041
Assignment: 2
Reel/Frame:
014692/0788Recorded: 11/14/2003Pages: 9
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
11/11/2003
Assignee:
1000 LOUISIANA
3RD FLOOR
HOUSTON, TEXAS 77002
Correspondent:
MAYER BROWN ROWE, ET AL.
ROBERT E. RUDE II
1909 K STREET, NW
WASHINGTON, DC 20006
Assignment: 3
Reel/Frame:
015990/0026Recorded: 05/10/2005Pages: 7
Conveyance:
SECURITY AGREEMENT
Assignor:
Exec Dt:
06/30/2004
Assignee:
1000 LOUISIANA, 3RD FLOOR
HOUSTON, TEXAS 77002
Correspondent:
WINSTEAD SECHREST & MINICK P.C.
P.O. BOX 50784
SANFORD E. WARREN, JR.
DALLAS, TX 75201
Assignment: 4
Reel/Frame:
022460/0304Recorded: 03/27/2009Pages: 5
Conveyance:
RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
08/22/2008
Assignee:
15151 SOMMERMEYER ST.
HOUSTON, TEXAS 77041
Correspondent:
SMITH INTERNATIONAL, INC.
16740 HARDY ST.
PATENT SERVICES
HOUSTON, TX 77032
Assignment: 5
Reel/Frame:
022231/0733Recorded: 02/10/2009Pages: 14
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
08/25/2008
Assignee:
16740 HARDY ST.
HOUSTON, TEXAS 77032
Correspondent:
MATTHEW STEINHEIDER
15151 SOMMERMEYER ST.
PATHFINDER ENERGY SERVICES, INC.
HOUSTON, TX 77041
Assignment: 6
Reel/Frame:
022520/0358Recorded: 04/08/2009Pages: 5
Conveyance:
RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
02/24/2009
Assignee:
15151 SOMMERMEYER ST.
HOUSTON, TEXAS 77041
Correspondent:
SMITH INTERNATIONAL, INC.
16740 HARDY ST.
PATENT SERVICES
HOUSTON, TX 77032
Assignment: 7
Reel/Frame:
029143/0015Recorded: 10/17/2012Pages: 28
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
10/09/2012
Assignee:
300 SCHLUMBERGER DRIVE
SUGAR LAND, TEXAS 77478
Correspondent:
CPA GLOBAL LIMITED
LIBERATION HOUSE
CASTLE STREET
ST HELIER, JE1 1BL JERSEY

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