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Reel/Frame:032284/0642   Pages: 11
Recorded: 02/24/2014
Attorney Dkt #:W277/30
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 22
1
Patent #:
5803193
Issue Dt:
09/08/1998
Application #:
08710628
Filing Dt:
09/20/1996
Title:
DRILL PIPE/CASING PROTECTOR ASSEMBLY
2
Patent #:
5692563
Issue Dt:
12/02/1997
Application #:
08713024
Filing Dt:
09/12/1996
Title:
TUBING FRICTION REDUCER
3
Patent #:
6250405
Issue Dt:
06/26/2001
Application #:
09473782
Filing Dt:
12/29/1999
Title:
DRILL PIPE PROTECTOR ASSEMBLY
4
Patent #:
6470974
Issue Dt:
10/29/2002
Application #:
09549326
Filing Dt:
04/13/2000
Title:
THREE-DIMENSIONAL STEERING TOOL FOR CONTROLLED DOWNHOLE EXTENDED-REACH DIRECTIONAL DRILLING
5
Patent #:
6467557
Issue Dt:
10/22/2002
Application #:
09629493
Filing Dt:
07/31/2000
Title:
LONG REACH ROTARY DRILLING ASSEMBLY
6
Patent #:
6378633
Issue Dt:
04/30/2002
Application #:
09805612
Filing Dt:
03/13/2001
Publication #:
US20020038727
Pub Dt:
04/04/2002
Title:
DRILL PIPE PROTECTOR ASSEMBLY
7
Patent #:
6708783
Issue Dt:
03/23/2004
Application #:
10282481
Filing Dt:
10/28/2002
Publication #:
US20030051919
Pub Dt:
03/20/2003
Title:
THREE-DIMENSIONAL STEERING TOOL FOR CONTROLLED DOWNHOLE EXTENDED-REACH DIRECTIONAL DRILLING
8
Patent #:
6739415
Issue Dt:
05/25/2004
Application #:
10407093
Filing Dt:
04/04/2003
Publication #:
US20030192720
Pub Dt:
10/16/2003
Title:
DRILL PIPE PROTECTOR
9
Patent #:
6942044
Issue Dt:
09/13/2005
Application #:
10697575
Filing Dt:
10/30/2003
Publication #:
US20040084219
Pub Dt:
05/06/2004
Title:
THREE-DIMENSIONAL STEERING TOOL FOR CONTROLLED DOWNHOLE EXTENDED-REACH DIRECTIONAL DRILLING
10
Patent #:
7055631
Issue Dt:
06/06/2006
Application #:
10812577
Filing Dt:
03/30/2004
Publication #:
US20040188147
Pub Dt:
09/30/2004
Title:
DRILL PIPE PROTECTOR
11
Patent #:
8119047
Issue Dt:
02/21/2012
Application #:
12074787
Filing Dt:
03/05/2008
Publication #:
US20080217063
Pub Dt:
09/11/2008
Title:
IN-SITU METHOD OF FORMING A NON-ROTATING DRILL PIPE PROTECTOR ASSEMBLY
12
Patent #:
7854275
Issue Dt:
12/21/2010
Application #:
12348770
Filing Dt:
01/05/2009
Publication #:
US20090173539
Pub Dt:
07/09/2009
Title:
SPRING-OPERATED ANTI-STALL TOOL
13
Patent #:
8146680
Issue Dt:
04/03/2012
Application #:
12348778
Filing Dt:
01/05/2009
Publication #:
US20090173540
Pub Dt:
07/09/2009
Title:
ANTI-STALL TOOL FOR DOWNHOLE DRILLING ASSEMBLIES
14
Patent #:
7938202
Issue Dt:
05/10/2011
Application #:
12429962
Filing Dt:
04/24/2009
Publication #:
US20090266618
Pub Dt:
10/29/2009
Title:
ROTATING DRILL PIPE PROTECTOR ATTACHMENT AND FASTENER ASSEMBLY
15
Patent #:
8800664
Issue Dt:
08/12/2014
Application #:
12844751
Filing Dt:
07/27/2010
Publication #:
US20110017516
Pub Dt:
01/27/2011
Title:
NON-ROTATING BUOYANCY MODULES FOR SUB-SEA CONDUITS
16
Patent #:
8511377
Issue Dt:
08/20/2013
Application #:
12912610
Filing Dt:
10/26/2010
Publication #:
US20110114307
Pub Dt:
05/19/2011
Title:
OPEN HOLE NON-ROTATING SLEEVE AND ASSEMBLY
17
Patent #:
8668007
Issue Dt:
03/11/2014
Application #:
12912615
Filing Dt:
10/26/2010
Publication #:
US20110114338
Pub Dt:
05/19/2011
Title:
NON-ROTATING CASING CENTRALIZER
18
Patent #:
NONE
Issue Dt:
Application #:
13267654
Filing Dt:
10/06/2011
Publication #:
US20120097451
Pub Dt:
04/26/2012
Title:
ELECTRICAL CONTROLLER FOR ANTI-STALL TOOLS FOR DOWNHOLE DRILLING ASSEMBLIES
19
Patent #:
8439129
Issue Dt:
05/14/2013
Application #:
13402576
Filing Dt:
02/22/2012
Publication #:
US20120145455
Pub Dt:
06/14/2012
Title:
ANTI-STALL TOOL FOR DOWNHOLE DRILLING ASSEMBLIES
20
Patent #:
8833487
Issue Dt:
09/16/2014
Application #:
13442642
Filing Dt:
04/09/2012
Publication #:
US20120261190
Pub Dt:
10/18/2012
Title:
MECHANICAL SPECIFIC ENERGY DRILLING SYSTEM
21
Patent #:
9157277
Issue Dt:
10/13/2015
Application #:
13759989
Filing Dt:
02/05/2013
Publication #:
US20130199846
Pub Dt:
08/08/2013
Title:
MOTOR SAVER SUB FOR DOWN HOLE DRILLING ASSEMBLIES
22
Patent #:
9708891
Issue Dt:
07/18/2017
Application #:
14049023
Filing Dt:
10/08/2013
Publication #:
US20140110098
Pub Dt:
04/24/2014
Title:
FLEXIBLE CASING GUIDE RUNNING TOOL
Assignor
1
WWT INTERNATIONAL, INC.
Exec Dt:
02/11/2014
Assignee
1
WWT NORTH AMERICA HOLDINGS, INC.
9758 WHITHORN DRIVE
HOUSTON, TEXAS 77095
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
P.O. BOX 29001
GLENDALE, CA 91209-9001

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