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Patent Assignment Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:018463/0103   Pages: 16
Recorded: 09/18/2006
Attorney Dkt #:10101634
Conveyance: RELEASE OF PATENT SECURITY AGREEMENT
Total properties: 90
1
Patent #:
Issue Dt:
11/18/1986
Application #:
06776452
Filing Dt:
09/16/1985
Title:
SEAL ASSEMBLY FOR DRILL BITS
2
Patent #:
Issue Dt:
10/21/1986
Application #:
06777279
Filing Dt:
09/18/1985
Title:
HARDENED BEARING SURFACE AND METHOD OF FORMING SAME
3
Patent #:
Issue Dt:
07/28/1987
Application #:
06830399
Filing Dt:
02/18/1986
Title:
MOUNTING MEANS FOR CUTTING ELEMENTS IN DRAG TYPE ROTARY DRILL BIT
4
Patent #:
Issue Dt:
05/16/1989
Application #:
07061413
Filing Dt:
06/12/1987
Title:
MOUNTING MEANS FOR CUTTING ELEMENTS IN DRAG TYPE ROTARY DRILL BIT
5
Patent #:
Issue Dt:
03/13/1990
Application #:
07084892
Filing Dt:
08/13/1987
Title:
ROTARY DRILL BIT HAVING IMPROVED MOUNTING MEANS FOR MULTIPLE CUTTING ELEMENTS
6
Patent #:
Issue Dt:
04/25/1989
Application #:
07118604
Filing Dt:
11/09/1987
Title:
ROTARY DRILL BITS
7
Patent #:
Issue Dt:
04/24/1990
Application #:
07148072
Filing Dt:
01/25/1988
Title:
CUTTING STRUCTURES FOR STEEL BODIED ROTARY DRILL BITS
8
Patent #:
Issue Dt:
07/18/1989
Application #:
07162289
Filing Dt:
02/29/1988
Title:
DRILL BIT HAVING OFFSET ROLLER CUTTERS AND IMPROVED NOZZLES
9
Patent #:
Issue Dt:
06/13/1989
Application #:
07186022
Filing Dt:
04/25/1988
Title:
SEAL ASSEMBLY FOR ROTARY DRILL BITS
10
Patent #:
Issue Dt:
12/19/1989
Application #:
07218642
Filing Dt:
07/13/1988
Title:
ROLLER CUTTER DRILL BIT AND METHOD OF FORMING
11
Patent #:
Issue Dt:
07/18/1989
Application #:
07270431
Filing Dt:
11/07/1988
Title:
DRAG DRILL BIT HAVING IMPROVED ARRANGEMENT OF CUTTING ELEMENTS
12
Patent #:
Issue Dt:
03/27/1990
Application #:
07312459
Filing Dt:
02/21/1989
Title:
MEANS FOR RETAINING ROLLER CUTTERS ON ROTARY DRILL BIT
13
Patent #:
Issue Dt:
07/10/1990
Application #:
07333576
Filing Dt:
04/05/1989
Title:
CUTTING ELEMENTS FOR ROLLER CUTTER DRILL BITS
14
Patent #:
Issue Dt:
02/05/1991
Application #:
07381040
Filing Dt:
07/17/1989
Title:
DRILL BIT HAVING IMPROVED HYDRAULIC ACTION FOR DIRECTING DRILLING FLUID
15
Patent #:
Issue Dt:
11/13/1990
Application #:
07420872
Filing Dt:
10/13/1989
Title:
CASE HARDENED ROLLER CUTTER FOR A ROTARY DRILL BIT AND METHOD OF MAKING
16
Patent #:
Issue Dt:
02/12/1991
Application #:
07433689
Filing Dt:
11/08/1989
Title:
ROTARY DRILL BIT FOR USE IN DRILLING HOLES IN SUBSURFACE EARTH FORMATIONS
17
Patent #:
Issue Dt:
01/08/1991
Application #:
07437180
Filing Dt:
11/16/1989
Title:
METHOD OF MAKING LUG JOURNAL FOR ROLLER CUTTER DRILL BITS
18
Patent #:
Issue Dt:
05/07/1991
Application #:
07475285
Filing Dt:
02/05/1990
Title:
METHOD OF MAKING A THREADED RETAINER RING FOR A ROLLER CUTTER ON A DRILL BIT
19
Patent #:
Issue Dt:
02/12/1991
Application #:
07492789
Filing Dt:
03/13/1990
Title:
MEANS FOR MOUNTING A ROLLER CUTTER ON A DRILL BIT
20
Patent #:
Issue Dt:
07/09/1991
Application #:
07502046
Filing Dt:
03/30/1990
Title:
NOZZLE MEANS FOR ROTARY DRILL BITS
21
Patent #:
Issue Dt:
08/20/1991
Application #:
07566129
Filing Dt:
08/13/1990
Title:
SEAL ASSEMBLY FOR ROLLER CUTTER DRILL BIT HAVING A PRESSURE BALANCED LUBRICATION SYSTEM
22
Patent #:
Issue Dt:
03/17/1992
Application #:
07613241
Filing Dt:
11/14/1990
Title:
HYDRAULIC ACTION FOR ROTARY DRILL BITS
23
Patent #:
Issue Dt:
12/17/1991
Application #:
07643486
Filing Dt:
01/22/1991
Title:
PRESSURE COMPENSATOR FOR DRILL BIT LUBRICATION SYSTEM
24
Patent #:
Issue Dt:
11/10/1992
Application #:
07726024
Filing Dt:
07/05/1991
Title:
ALUMINIDE COATED BEARING ELEMENTS FOR ROLLER CUTTER DRILL BITS
25
Patent #:
Issue Dt:
01/24/1995
Application #:
08110854
Filing Dt:
08/24/1993
Title:
THREADED RING RETENTION MECHANISM
26
Patent #:
Issue Dt:
11/14/1995
Application #:
08111373
Filing Dt:
08/24/1993
Title:
ROLLING CUTTER DRILL BITS
27
Patent #:
Issue Dt:
12/13/1994
Application #:
08136442
Filing Dt:
10/12/1993
Title:
ROLLING CUTTER DRILL BITS
28
Patent #:
Issue Dt:
11/28/1995
Application #:
08163344
Filing Dt:
12/07/1993
Title:
CUTTING ELEMENTS FOR ROTARY DRILL BITS
29
Patent #:
Issue Dt:
03/10/1998
Application #:
08506993
Filing Dt:
07/28/1995
Title:
ROLLING CUTTER DRILL BITS
30
Patent #:
Issue Dt:
10/21/1997
Application #:
08515536
Filing Dt:
08/15/1995
Title:
IMPROVED BI-CENTER BIT AND METHOD FOR ENHANCING STABILITY
31
Patent #:
Issue Dt:
05/13/1997
Application #:
08520431
Filing Dt:
08/29/1995
Title:
THRUST FACE LUBRICATION SYSTEM FOR A ROLLING CUTTER DRILL BIT
32
Patent #:
Issue Dt:
09/30/1997
Application #:
08540685
Filing Dt:
10/02/1995
Title:
DRILL BIT WITH DUAL REAMING ROWS
33
Patent #:
Issue Dt:
08/05/1997
Application #:
08559959
Filing Dt:
11/17/1995
Title:
HARDMETAL FACING FOR ROLLING CUTTER DRILL BIT
34
Patent #:
Issue Dt:
10/14/1997
Application #:
08627171
Filing Dt:
04/03/1996
Title:
FLOW CHANNELS FOR TOOTH TYPE ROLLING CUTTER DRILL BITS
35
Patent #:
Issue Dt:
09/08/1998
Application #:
08655988
Filing Dt:
05/31/1996
Title:
STABILIZING DRILL BIT
36
Patent #:
Issue Dt:
10/06/1998
Application #:
08659502
Filing Dt:
06/06/1996
Title:
ROTARY DRILL BITS AND METHODS OF DESIGNING SUCH DRILL BITS
37
Patent #:
Issue Dt:
04/21/1998
Application #:
08673978
Filing Dt:
07/01/1996
Title:
HARDFACING MATERIAL FOR ROLLING CUTTER DRILL BITS
38
Patent #:
Issue Dt:
03/02/1999
Application #:
08685851
Filing Dt:
07/24/1996
Title:
DIFFERENT STIFFNESS ENERGIZERS FOR MF SEALS
39
Patent #:
Issue Dt:
11/24/1998
Application #:
08771000
Filing Dt:
12/23/1996
Title:
DIRECTIONAL DRILL BIT
40
Patent #:
Issue Dt:
08/03/1999
Application #:
08781217
Filing Dt:
01/10/1997
Title:
HYDROSTATIC THRUST FACE LUBRICATION SYSTEM
41
Patent #:
Issue Dt:
11/23/1999
Application #:
08903913
Filing Dt:
07/31/1997
Title:
HARDMETAL FACING FOR EARTH BORING DRILL BIT
42
Patent #:
Issue Dt:
09/14/1999
Application #:
08909432
Filing Dt:
04/15/1997
Title:
METHODS AND RELATED EQUIPMENT FOR ROTARY DRILLING
43
Patent #:
Issue Dt:
12/29/1998
Application #:
08942128
Filing Dt:
10/01/1997
Title:
ROCK BIT CUTTER RETAINER WITH DIFFERENTIALLY PITCHED THREADS
44
Patent #:
Issue Dt:
10/19/1999
Application #:
08950286
Filing Dt:
10/14/1997
Title:
ROCK BIT HARDMETAL OVERLAY AND PROCESS OF MANUFACTURE
45
Patent #:
Issue Dt:
11/30/1999
Application #:
08955147
Filing Dt:
10/21/1997
Title:
BI-CENTER BIT WITH OPPOSITELY DISPOSED CUTTING SURFACES
46
Patent #:
Issue Dt:
03/12/2002
Application #:
08971504
Filing Dt:
11/17/1997
Title:
ROLLING CUTTER DRILL BITS
47
Patent #:
Issue Dt:
01/04/2000
Application #:
09014116
Filing Dt:
01/27/1998
Title:
CORING TOOL
48
Patent #:
Issue Dt:
05/30/2000
Application #:
09021012
Filing Dt:
02/09/1998
Title:
CUTTING ELEMENT
49
Patent #:
Issue Dt:
11/07/2000
Application #:
09057714
Filing Dt:
04/02/1998
Title:
REDUCED EROSION NOZZLE SYSTEM AND METHOD FOR THE USE OF DRILL BITS TO REDUCE EROSION
50
Patent #:
Issue Dt:
02/22/2000
Application #:
09129179
Filing Dt:
04/16/1998
Title:
CUTTING ELEMENT WITH STRESS REDUCTION
51
Patent #:
Issue Dt:
11/09/1999
Application #:
09149196
Filing Dt:
09/08/1998
Title:
STABILIZING DRILL BIT WITH IMPROVED CUTTING ELEMENTS
52
Patent #:
Issue Dt:
01/02/2001
Application #:
09183504
Filing Dt:
10/30/1998
Title:
WEAR INDICATOR FOR ROTARY DRILLING TOOLS
53
Patent #:
Issue Dt:
05/09/2000
Application #:
09190804
Filing Dt:
11/11/1998
Title:
PNEUMATIC ISOSTATIC FORGING OF SINTERED COMPACTS
54
Patent #:
Issue Dt:
08/29/2000
Application #:
09196478
Filing Dt:
11/19/1998
Title:
FACE SEAL HAVING STRAIN INDUCED FACE GEOMETRY
55
Patent #:
Issue Dt:
08/01/2000
Application #:
09234854
Filing Dt:
01/22/1999
Title:
ROLLING CUTTER DRILL BIT WITH STABILIZED INSERT HOLES AND METHOD FOR MAKING A ROLLING CUTTER DRILL BIT WITH STABILIZED INSERT HOLES
56
Patent #:
Issue Dt:
10/24/2000
Application #:
09265266
Filing Dt:
03/09/1999
Title:
FIXED CUTTER DRILL BITS WITH THIN, INTEGRALLY FORMED WEAR AND EROSION RESISTANT SURFACES
57
Patent #:
Issue Dt:
07/02/2002
Application #:
09321362
Filing Dt:
05/27/1999
Publication #:
Pub Dt:
11/29/2001
Title:
TWO STAGE DRILL BIT
58
Patent #:
Issue Dt:
01/09/2001
Application #:
09326236
Filing Dt:
06/04/1999
Title:
METHOD AND APPARATUS FOR LOADING LUBRICANT INTO EARTH BORING BITS
59
Patent #:
Issue Dt:
04/04/2000
Application #:
09360751
Filing Dt:
07/26/1999
Title:
ROCK BIT HARDMETAL OVERLAY AND PROCESS OF MANUFACTURE
60
Patent #:
Issue Dt:
10/31/2000
Application #:
09378091
Filing Dt:
08/20/1999
Title:
ROCK BIT LUBRICANT RELIEF VALVE
61
Patent #:
Issue Dt:
11/13/2001
Application #:
09391033
Filing Dt:
09/07/1999
Title:
CUTTING ELEMENT WITH STRESS REDUCTION
62
Patent #:
Issue Dt:
01/22/2002
Application #:
09392043
Filing Dt:
09/08/1999
Publication #:
Pub Dt:
11/29/2001
Title:
BI-CENTER BIT ADAPTED TO DRILL CASING SHOE
63
Patent #:
Issue Dt:
01/23/2001
Application #:
09417041
Filing Dt:
10/12/1999
Title:
ROCK BIT FACE SEAL HAVING ANTI-ROTATION PINS
64
Patent #:
Issue Dt:
02/27/2001
Application #:
09444072
Filing Dt:
11/22/1999
Title:
DRAG-TYPE ROTARY DRILL BIT
65
Patent #:
Issue Dt:
04/16/2002
Application #:
09447059
Filing Dt:
11/22/1999
Title:
DRAG-TYPE ROTARY DRILL BIT
66
Patent #:
Issue Dt:
06/19/2001
Application #:
09452774
Filing Dt:
12/02/1999
Title:
SINGLE ENERGIZER FACE SEAL FOR ROCK BITS WITH FLOATING JOURNAL BEARINGS
67
Patent #:
Issue Dt:
01/15/2002
Application #:
09492731
Filing Dt:
01/27/2000
Title:
Volume reduction mandrel for use in pneumatic isostatic forging
68
Patent #:
Issue Dt:
02/19/2002
Application #:
09547525
Filing Dt:
04/12/2000
Title:
Tooth type drill bit with secondary cutting elements and stress reducing tooth geometry
69
Patent #:
Issue Dt:
06/11/2002
Application #:
09583488
Filing Dt:
05/31/2000
Title:
CUTTING ELEMENT WITH STRESS REDUCTION
70
Patent #:
Issue Dt:
05/28/2002
Application #:
09645235
Filing Dt:
08/24/2000
Title:
NON-CIRCULAR GAUGE REAMING ROW INSERTS
71
Patent #:
Issue Dt:
11/26/2002
Application #:
09682165
Filing Dt:
07/30/2001
Publication #:
Pub Dt:
02/28/2002
Title:
FAILURE INDICATOR FOR ROLLING CUTTER DRILL BIT
72
Patent #:
Issue Dt:
08/06/2002
Application #:
09683022
Filing Dt:
11/08/2001
Title:
ROCK BIT FACE SEAL HAVING LUBRICATION GAP
73
Patent #:
Issue Dt:
08/27/2002
Application #:
09683030
Filing Dt:
11/09/2001
Publication #:
Pub Dt:
08/15/2002
Title:
FABRICATION PROCESS FOR POWDER COMPOSITE ROD
74
Patent #:
Issue Dt:
07/09/2002
Application #:
09702507
Filing Dt:
10/31/2000
Title:
ROLLING CUTTER DRILL BITS
75
Patent #:
Issue Dt:
03/26/2002
Application #:
09782341
Filing Dt:
02/13/2001
Title:
FABRICATION PROCESS FOR HIGH DENSITY POWDER COMPOSITE HARDFACING ROD
76
Patent #:
Issue Dt:
10/22/2002
Application #:
09841659
Filing Dt:
04/24/2001
Publication #:
Pub Dt:
10/24/2002
Title:
ACCELEROMETER CALIPER WHILE DRILLING
77
Patent #:
Issue Dt:
10/07/2003
Application #:
09969444
Filing Dt:
10/02/2001
Publication #:
Pub Dt:
07/18/2002
Title:
BI-CENTER BIT ADAPTED TO DRILL CASING SHOE
78
Patent #:
Issue Dt:
07/05/2005
Application #:
10301049
Filing Dt:
11/21/2002
Publication #:
Pub Dt:
05/27/2004
Title:
SUB-REAMER FOR BI-CENTER TYPE TOOLS
79
Patent #:
NONE
Issue Dt:
Application #:
10604714
Filing Dt:
08/12/2003
Publication #:
Pub Dt:
06/10/2004
Title:
Hydraulic Optimization of Drilling Fluids in Borehole Drilling
80
Patent #:
Issue Dt:
05/02/2006
Application #:
10605177
Filing Dt:
09/12/2003
Publication #:
Pub Dt:
03/17/2005
Title:
LIP SEAL FOR ROLLER CONE DRILL BIT
81
Patent #:
Issue Dt:
10/12/2004
Application #:
10605627
Filing Dt:
10/15/2003
Title:
APPARATUS FOR WEIGHT ON BIT MEASUREMENTS, AND METHODS OF USING SAME
82
Patent #:
Issue Dt:
01/31/2006
Application #:
10701232
Filing Dt:
11/03/2003
Publication #:
Pub Dt:
05/05/2005
Title:
EXPANDABLE ECCENTRIC REAMER AND METHOD OF USE IN DRILLING
83
Patent #:
Issue Dt:
01/30/2007
Application #:
10709108
Filing Dt:
04/14/2004
Publication #:
Pub Dt:
10/20/2005
Title:
ON-BIT, ANALOG MULTIPLEXER FOR TRANSMISSION OF MULTI-CHANNEL DRILLING INFORMATION
84
Patent #:
NONE
Issue Dt:
Application #:
10709625
Filing Dt:
05/18/2004
Publication #:
Pub Dt:
11/24/2005
Title:
Equipment Housing for Downhole Measurements
85
Patent #:
NONE
Issue Dt:
Application #:
10709653
Filing Dt:
05/20/2004
Publication #:
Pub Dt:
11/24/2005
Title:
Self-Aligning Insert for Drill Bits
86
Patent #:
Issue Dt:
10/25/2005
Application #:
10711589
Filing Dt:
09/27/2004
Publication #:
Pub Dt:
04/21/2005
Title:
APPARATUS FOR WEIGHT ON BIT MEASUREMENTS, AND METHODS OF USING SAME
87
Patent #:
NONE
Issue Dt:
Application #:
10711608
Filing Dt:
09/28/2004
Publication #:
Pub Dt:
03/30/2006
Title:
Removable Equipment Housing for Downhole Measurements
88
Patent #:
NONE
Issue Dt:
Application #:
10906232
Filing Dt:
02/10/2005
Publication #:
Pub Dt:
08/10/2006
Title:
Fluid-Soluble Pattern Material for Investment Casting Process, and Methods for Using Same
89
Patent #:
NONE
Issue Dt:
Application #:
10908040
Filing Dt:
04/26/2005
Publication #:
Pub Dt:
10/26/2006
Title:
COMPOSITE STRUCTURE HAVING A NON-PLANAR INTERFACE AND METHOD OF MAKING SAME
90
Patent #:
NONE
Issue Dt:
Application #:
10971865
Filing Dt:
10/21/2004
Publication #:
Pub Dt:
05/11/2006
Title:
Re-settable locking mechanism for downhole tools
Assignor
1
Exec Dt:
08/31/2006
Assignee
1
400 N. SAM HOUSTON PARKWAY EAST
SUITE 900
HOUSTON, TEXAS 77060
Correspondence name and address
JAN K. SIMPSON
FULBRIGHT & JAWORSKI L.L.P.
FULBRIGHT TOWER
1301 MCKINNEY, SUITE 5100
HOUSTON, TX 77010-3095

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