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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:057683/0706   Pages: 92
Recorded: 10/01/2021
Conveyance: SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 2282
Page 1 of 23
Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
1
Patent #:
7283061
Issue Dt:
10/16/2007
Application #:
09586648
Filing Dt:
06/01/2000
Title:
METHOD AND SYSTEM FOR PERFORMING OPERATIONS AND FOR IMPROVING PRODUCTION IN WELLS
2
Patent #:
7283061
Issue Dt:
10/16/2007
Application #:
09586648
Filing Dt:
06/01/2000
Title:
METHOD AND SYSTEM FOR PERFORMING OPERATIONS AND FOR IMPROVING PRODUCTION IN WELLS
3
Patent #:
6566657
Issue Dt:
05/20/2003
Application #:
09808621
Filing Dt:
03/14/2001
Publication #:
US20020130268
Pub Dt:
09/19/2002
Title:
GEOMETRICALLY OPTIMIZED FAST NEUTRON DETECTOR
4
Patent #:
6566657
Issue Dt:
05/20/2003
Application #:
09808621
Filing Dt:
03/14/2001
Publication #:
US20020130268
Pub Dt:
09/19/2002
Title:
GEOMETRICALLY OPTIMIZED FAST NEUTRON DETECTOR
5
Patent #:
6612481
Issue Dt:
09/02/2003
Application #:
09917960
Filing Dt:
07/30/2001
Publication #:
US20030021922
Pub Dt:
01/30/2003
Title:
WELLSCREEN
6
Patent #:
6612481
Issue Dt:
09/02/2003
Application #:
09917960
Filing Dt:
07/30/2001
Publication #:
US20030021922
Pub Dt:
01/30/2003
Title:
WELLSCREEN
7
Patent #:
6728639
Issue Dt:
04/27/2004
Application #:
09931332
Filing Dt:
08/16/2001
Publication #:
US20020059734
Pub Dt:
05/23/2002
Title:
METHOD AND APPARATUS FOR DETERMINING THE ORIENTATION OF A BOREHOLE
8
Patent #:
6728639
Issue Dt:
04/27/2004
Application #:
09931332
Filing Dt:
08/16/2001
Publication #:
US20020059734
Pub Dt:
05/23/2002
Title:
METHOD AND APPARATUS FOR DETERMINING THE ORIENTATION OF A BOREHOLE
9
Patent #:
6885188
Issue Dt:
04/26/2005
Application #:
09931552
Filing Dt:
08/16/2001
Publication #:
US20020078745
Pub Dt:
06/27/2002
Title:
DETECTOR ASSEMBLIES AND METHODS
10
Patent #:
6885188
Issue Dt:
04/26/2005
Application #:
09931552
Filing Dt:
08/16/2001
Publication #:
US20020078745
Pub Dt:
06/27/2002
Title:
DETECTOR ASSEMBLIES AND METHODS
11
Patent #:
6578638
Issue Dt:
06/17/2003
Application #:
09940067
Filing Dt:
08/27/2001
Publication #:
US20030037932
Pub Dt:
02/27/2003
Title:
DRILLABLE INFLATABLE PACKER & METHODS OF USE
12
Patent #:
6578638
Issue Dt:
06/17/2003
Application #:
09940067
Filing Dt:
08/27/2001
Publication #:
US20030037932
Pub Dt:
02/27/2003
Title:
DRILLABLE INFLATABLE PACKER & METHODS OF USE
13
Patent #:
6580268
Issue Dt:
06/17/2003
Application #:
09940865
Filing Dt:
08/28/2001
Publication #:
US20030042897
Pub Dt:
03/06/2003
Title:
SUCKER ROD DIMENSION MEASUREMENT AND FLAW DETECTION SYSTEM
14
Patent #:
6580268
Issue Dt:
06/17/2003
Application #:
09940865
Filing Dt:
08/28/2001
Publication #:
US20030042897
Pub Dt:
03/06/2003
Title:
SUCKER ROD DIMENSION MEASUREMENT AND FLAW DETECTION SYSTEM
15
Patent #:
6595287
Issue Dt:
07/22/2003
Application #:
09972390
Filing Dt:
10/05/2001
Publication #:
US20020074118
Pub Dt:
06/20/2002
Title:
AUTO ADJUSTING WELL CONTROL SYSTEM
16
Patent #:
6595287
Issue Dt:
07/22/2003
Application #:
09972390
Filing Dt:
10/05/2001
Publication #:
US20020074118
Pub Dt:
06/20/2002
Title:
AUTO ADJUSTING WELL CONTROL SYSTEM
17
Patent #:
6585061
Issue Dt:
07/01/2003
Application #:
09976129
Filing Dt:
10/15/2001
Publication #:
US20030070844
Pub Dt:
04/17/2003
Title:
CALCULATING DIRECTIONAL DRILLING TOOL FACE OFFSETS
18
Patent #:
6585061
Issue Dt:
07/01/2003
Application #:
09976129
Filing Dt:
10/15/2001
Publication #:
US20030070844
Pub Dt:
04/17/2003
Title:
CALCULATING DIRECTIONAL DRILLING TOOL FACE OFFSETS
19
Patent #:
6662885
Issue Dt:
12/16/2003
Application #:
09983461
Filing Dt:
10/24/2001
Publication #:
US20030075332
Pub Dt:
04/24/2003
Title:
METHOD AND APPARATUS FOR PROVIDING A STREAM OF PRESSURIZED SUBSTANTIALLY INERT GAS
20
Patent #:
6662885
Issue Dt:
12/16/2003
Application #:
09983461
Filing Dt:
10/24/2001
Publication #:
US20030075332
Pub Dt:
04/24/2003
Title:
METHOD AND APPARATUS FOR PROVIDING A STREAM OF PRESSURIZED SUBSTANTIALLY INERT GAS
21
Patent #:
6805196
Issue Dt:
10/19/2004
Application #:
09990772
Filing Dt:
11/16/2001
Publication #:
US20020104647
Pub Dt:
08/08/2002
Title:
EXPANDER
22
Patent #:
6805196
Issue Dt:
10/19/2004
Application #:
09990772
Filing Dt:
11/16/2001
Publication #:
US20020104647
Pub Dt:
08/08/2002
Title:
EXPANDER
23
Patent #:
6622795
Issue Dt:
09/23/2003
Application #:
09995842
Filing Dt:
11/28/2001
Publication #:
US20030098163
Pub Dt:
05/29/2003
Title:
FLOW ACTUATED VALVE FOR USE IN A WELLBORE
24
Patent #:
6622795
Issue Dt:
09/23/2003
Application #:
09995842
Filing Dt:
11/28/2001
Publication #:
US20030098163
Pub Dt:
05/29/2003
Title:
FLOW ACTUATED VALVE FOR USE IN A WELLBORE
25
Patent #:
6898541
Issue Dt:
05/24/2005
Application #:
09996626
Filing Dt:
11/28/2001
Publication #:
US20020123852
Pub Dt:
09/05/2002
Title:
METHOD AND APPARATUS FOR DETERMINING COMPONENT FLOW RATES FOR A MULTIPHASE FLOW
26
Patent #:
6898541
Issue Dt:
05/24/2005
Application #:
09996626
Filing Dt:
11/28/2001
Publication #:
US20020123852
Pub Dt:
09/05/2002
Title:
METHOD AND APPARATUS FOR DETERMINING COMPONENT FLOW RATES FOR A MULTIPHASE FLOW
27
Patent #:
6738720
Issue Dt:
05/18/2004
Application #:
09997134
Filing Dt:
11/29/2001
Publication #:
US20030101011
Pub Dt:
05/29/2003
Title:
APPARATUS AND METHODS FOR MEASUREMENT OF DENSITY OF MATERIALS USING A NEUTRON SOURCE AND TWO SPECTROMETERS
28
Patent #:
6738720
Issue Dt:
05/18/2004
Application #:
09997134
Filing Dt:
11/29/2001
Publication #:
US20030101011
Pub Dt:
05/29/2003
Title:
APPARATUS AND METHODS FOR MEASUREMENT OF DENSITY OF MATERIALS USING A NEUTRON SOURCE AND TWO SPECTROMETERS
29
Patent #:
6587798
Issue Dt:
07/01/2003
Application #:
09997221
Filing Dt:
11/28/2001
Publication #:
US20020100327
Pub Dt:
08/01/2002
Title:
METHOD AND SYSTEM FOR DETERMINING THE SPEED OF SOUND IN A FLUID WITHIN A CONDUIT
30
Patent #:
6587798
Issue Dt:
07/01/2003
Application #:
09997221
Filing Dt:
11/28/2001
Publication #:
US20020100327
Pub Dt:
08/01/2002
Title:
METHOD AND SYSTEM FOR DETERMINING THE SPEED OF SOUND IN A FLUID WITHIN A CONDUIT
31
Patent #:
6971259
Issue Dt:
12/06/2005
Application #:
10010183
Filing Dt:
11/07/2001
Publication #:
US20030084707
Pub Dt:
05/08/2003
Title:
FLUID DENSITY MEASUREMENT IN PIPES USING ACOUSTIC PRESSURES
32
Patent #:
6971259
Issue Dt:
12/06/2005
Application #:
10010183
Filing Dt:
11/07/2001
Publication #:
US20030084707
Pub Dt:
05/08/2003
Title:
FLUID DENSITY MEASUREMENT IN PIPES USING ACOUSTIC PRESSURES
33
Patent #:
6668684
Issue Dt:
12/30/2003
Application #:
10011049
Filing Dt:
12/07/2001
Publication #:
US20020134555
Pub Dt:
09/26/2002
Title:
TONG FOR WELLBORE OPERATIONS
34
Patent #:
6668684
Issue Dt:
12/30/2003
Application #:
10011049
Filing Dt:
12/07/2001
Publication #:
US20020134555
Pub Dt:
09/26/2002
Title:
TONG FOR WELLBORE OPERATIONS
35
Patent #:
6702010
Issue Dt:
03/09/2004
Application #:
10032644
Filing Dt:
12/28/2001
Publication #:
US20020108487
Pub Dt:
08/15/2002
Title:
APPARATUS AND METHOD FOR ACTUATING ARMS
36
Patent #:
6702010
Issue Dt:
03/09/2004
Application #:
10032644
Filing Dt:
12/28/2001
Publication #:
US20020108487
Pub Dt:
08/15/2002
Title:
APPARATUS AND METHOD FOR ACTUATING ARMS
37
Patent #:
6653839
Issue Dt:
11/25/2003
Application #:
10032981
Filing Dt:
12/28/2001
Publication #:
US20020153896
Pub Dt:
10/24/2002
Title:
ELECTRICAL MEASUREMENT APPARATUS AND METHOD FOR MEASURING AN ELECTRICAL CHARACTERISTIC OF AN EARTH FORMATION
38
Patent #:
6653839
Issue Dt:
11/25/2003
Application #:
10032981
Filing Dt:
12/28/2001
Publication #:
US20020153896
Pub Dt:
10/24/2002
Title:
ELECTRICAL MEASUREMENT APPARATUS AND METHOD FOR MEASURING AN ELECTRICAL CHARACTERISTIC OF AN EARTH FORMATION
39
Patent #:
6592334
Issue Dt:
07/15/2003
Application #:
10036737
Filing Dt:
12/21/2001
Publication #:
US20030118452
Pub Dt:
06/26/2003
Title:
HYDRAULIC MULTIPHASE PUMP
40
Patent #:
6592334
Issue Dt:
07/15/2003
Application #:
10036737
Filing Dt:
12/21/2001
Publication #:
US20030118452
Pub Dt:
06/26/2003
Title:
HYDRAULIC MULTIPHASE PUMP
41
Patent #:
6715567
Issue Dt:
04/06/2004
Application #:
10037529
Filing Dt:
01/04/2002
Publication #:
US20020162658
Pub Dt:
11/07/2002
Title:
AN APPARATUS AND METHOD FOR FORMING A PILOT HOLE IN A FORMATION
42
Patent #:
6715567
Issue Dt:
04/06/2004
Application #:
10037529
Filing Dt:
01/04/2002
Publication #:
US20020162658
Pub Dt:
11/07/2002
Title:
AN APPARATUS AND METHOD FOR FORMING A PILOT HOLE IN A FORMATION
43
Patent #:
6577129
Issue Dt:
06/10/2003
Application #:
10053041
Filing Dt:
01/19/2002
Title:
WELL LOGGING SYSTEM FOR DETERMINING DIRECTIONAL RESISTIVITY USING MULTIPLE TRANSMITTER-RECEIVER GROUPS FOCUSED WITH MAGNETIC RELUCTANCE MATERIAL
44
Patent #:
6577129
Issue Dt:
06/10/2003
Application #:
10053041
Filing Dt:
01/19/2002
Title:
WELL LOGGING SYSTEM FOR DETERMINING DIRECTIONAL RESISTIVITY USING MULTIPLE TRANSMITTER-RECEIVER GROUPS FOCUSED WITH MAGNETIC RELUCTANCE MATERIAL
45
Patent #:
6646441
Issue Dt:
11/11/2003
Application #:
10053043
Filing Dt:
01/19/2002
Publication #:
US20030137301
Pub Dt:
07/24/2003
Title:
WELL LOGGING SYSTEM FOR DETERMINING RESISTIVITY USING MULTIPLE TRANSMITTER-RECEIVER GROUPS OPERATING AT THREE FREQUENCIES AND AT OPTIMIZED GAIN
46
Patent #:
6646441
Issue Dt:
11/11/2003
Application #:
10053043
Filing Dt:
01/19/2002
Publication #:
US20030137301
Pub Dt:
07/24/2003
Title:
WELL LOGGING SYSTEM FOR DETERMINING RESISTIVITY USING MULTIPLE TRANSMITTER-RECEIVER GROUPS OPERATING AT THREE FREQUENCIES AND AT OPTIMIZED GAIN
47
Patent #:
6732806
Issue Dt:
05/11/2004
Application #:
10060029
Filing Dt:
01/29/2002
Publication #:
US20030141059
Pub Dt:
07/31/2003
Title:
ONE TRIP EXPANSION APPARATUS FOR USE IN A WELLBORE
48
Patent #:
6732806
Issue Dt:
05/11/2004
Application #:
10060029
Filing Dt:
01/29/2002
Publication #:
US20030141059
Pub Dt:
07/31/2003
Title:
ONE TRIP EXPANSION APPARATUS FOR USE IN A WELLBORE
49
Patent #:
6666285
Issue Dt:
12/23/2003
Application #:
10078199
Filing Dt:
02/15/2002
Publication #:
US20030155121
Pub Dt:
08/21/2003
Title:
LOGGING-WHILE-DRILLING APPARATUS AND METHODS FOR MEASURING DENSITY
50
Patent #:
6666285
Issue Dt:
12/23/2003
Application #:
10078199
Filing Dt:
02/15/2002
Publication #:
US20030155121
Pub Dt:
08/21/2003
Title:
LOGGING-WHILE-DRILLING APPARATUS AND METHODS FOR MEASURING DENSITY
51
Patent #:
6767035
Issue Dt:
07/27/2004
Application #:
10095124
Filing Dt:
03/11/2002
Publication #:
US20030168858
Pub Dt:
09/11/2003
Title:
HIGH TORQUE MODIFIED PROFILE THREADED TUBULAR CONNECTION
52
Patent #:
6767035
Issue Dt:
07/27/2004
Application #:
10095124
Filing Dt:
03/11/2002
Publication #:
US20030168858
Pub Dt:
09/11/2003
Title:
HIGH TORQUE MODIFIED PROFILE THREADED TUBULAR CONNECTION
53
Patent #:
6708763
Issue Dt:
03/23/2004
Application #:
10097448
Filing Dt:
03/13/2002
Publication #:
US20030173086
Pub Dt:
09/18/2003
Title:
METHOD AND APPARATUS FOR INJECTING STEAM INTO A GEOLOGICAL FORMATION
54
Patent #:
6708763
Issue Dt:
03/23/2004
Application #:
10097448
Filing Dt:
03/13/2002
Publication #:
US20030173086
Pub Dt:
09/18/2003
Title:
METHOD AND APPARATUS FOR INJECTING STEAM INTO A GEOLOGICAL FORMATION
55
Patent #:
6668930
Issue Dt:
12/30/2003
Application #:
10106178
Filing Dt:
03/26/2002
Publication #:
US20030183397
Pub Dt:
10/02/2003
Title:
METHOD FOR INSTALLING AN EXPANDABLE COILED TUBING PATCH
56
Patent #:
6668930
Issue Dt:
12/30/2003
Application #:
10106178
Filing Dt:
03/26/2002
Publication #:
US20030183397
Pub Dt:
10/02/2003
Title:
METHOD FOR INSTALLING AN EXPANDABLE COILED TUBING PATCH
57
Patent #:
6712151
Issue Dt:
03/30/2004
Application #:
10114923
Filing Dt:
04/03/2002
Publication #:
US20030024711
Pub Dt:
02/06/2003
Title:
TUBING EXPANSION
58
Patent #:
6712151
Issue Dt:
03/30/2004
Application #:
10114923
Filing Dt:
04/03/2002
Publication #:
US20030024711
Pub Dt:
02/06/2003
Title:
TUBING EXPANSION
59
Patent #:
6915849
Issue Dt:
07/12/2005
Application #:
10127021
Filing Dt:
04/19/2002
Publication #:
US20020170711
Pub Dt:
11/21/2002
Title:
APPARATUS AND METHODS FOR CONVEYING INSTRUMENTATION WITHIN A BOREHOLE USING CONTINUOUS SUCKER ROD
60
Patent #:
6915849
Issue Dt:
07/12/2005
Application #:
10127021
Filing Dt:
04/19/2002
Publication #:
US20020170711
Pub Dt:
11/21/2002
Title:
APPARATUS AND METHODS FOR CONVEYING INSTRUMENTATION WITHIN A BOREHOLE USING CONTINUOUS SUCKER ROD
61
Patent #:
6854519
Issue Dt:
02/15/2005
Application #:
10138253
Filing Dt:
05/03/2002
Publication #:
US20030205389
Pub Dt:
11/06/2003
Title:
SUBSURFACE VALVE WITH SYSTEM AND METHOD FOR SEALING
62
Patent #:
6854519
Issue Dt:
02/15/2005
Application #:
10138253
Filing Dt:
05/03/2002
Publication #:
US20030205389
Pub Dt:
11/06/2003
Title:
SUBSURFACE VALVE WITH SYSTEM AND METHOD FOR SEALING
63
Patent #:
6898338
Issue Dt:
05/24/2005
Application #:
10151475
Filing Dt:
05/17/2002
Publication #:
US20020196995
Pub Dt:
12/26/2002
Title:
FABRY-PEROT SENSING ELEMENT BASED ON A LARGE-DIAMETER OPTICAL WAVEGUIDE
64
Patent #:
6898338
Issue Dt:
05/24/2005
Application #:
10151475
Filing Dt:
05/17/2002
Publication #:
US20020196995
Pub Dt:
12/26/2002
Title:
FABRY-PEROT SENSING ELEMENT BASED ON A LARGE-DIAMETER OPTICAL WAVEGUIDE
65
Patent #:
6807324
Issue Dt:
10/19/2004
Application #:
10153199
Filing Dt:
05/21/2002
Publication #:
US20030219190
Pub Dt:
11/27/2003
Title:
METHOD AND APPARATUS FOR CALIBRATING A DISTRIBUTED TEMPERATURE SENSING SYSTEM
66
Patent #:
6807324
Issue Dt:
10/19/2004
Application #:
10153199
Filing Dt:
05/21/2002
Publication #:
US20030219190
Pub Dt:
11/27/2003
Title:
METHOD AND APPARATUS FOR CALIBRATING A DISTRIBUTED TEMPERATURE SENSING SYSTEM
67
Patent #:
6732804
Issue Dt:
05/11/2004
Application #:
10154437
Filing Dt:
05/23/2002
Publication #:
US20030217849
Pub Dt:
11/27/2003
Title:
DYNAMIC MUDCAP DRILLING AND WELL CONTROL SYSTEM
68
Patent #:
6732804
Issue Dt:
05/11/2004
Application #:
10154437
Filing Dt:
05/23/2002
Publication #:
US20030217849
Pub Dt:
11/27/2003
Title:
DYNAMIC MUDCAP DRILLING AND WELL CONTROL SYSTEM
69
Patent #:
6827148
Issue Dt:
12/07/2004
Application #:
10154489
Filing Dt:
05/22/2002
Publication #:
US20030217850
Pub Dt:
11/27/2003
Title:
DOWNHOLE TOOL FOR USE IN A WELLBORE
70
Patent #:
6827148
Issue Dt:
12/07/2004
Application #:
10154489
Filing Dt:
05/22/2002
Publication #:
US20030217850
Pub Dt:
11/27/2003
Title:
DOWNHOLE TOOL FOR USE IN A WELLBORE
71
Patent #:
6834726
Issue Dt:
12/28/2004
Application #:
10157743
Filing Dt:
05/29/2002
Publication #:
US20030221837
Pub Dt:
12/04/2003
Title:
METHOD AND APPARATUS TO REDUCE DOWNHOLE SURGE PRESSURE USING HYDROSTATIC VALVE
72
Patent #:
6834726
Issue Dt:
12/28/2004
Application #:
10157743
Filing Dt:
05/29/2002
Publication #:
US20030221837
Pub Dt:
12/04/2003
Title:
METHOD AND APPARATUS TO REDUCE DOWNHOLE SURGE PRESSURE USING HYDROSTATIC VALVE
73
Patent #:
7028771
Issue Dt:
04/18/2006
Application #:
10159176
Filing Dt:
05/30/2002
Publication #:
US20030221825
Pub Dt:
12/04/2003
Title:
HYDROCARBON RECOVERY
74
Patent #:
7028771
Issue Dt:
04/18/2006
Application #:
10159176
Filing Dt:
05/30/2002
Publication #:
US20030221825
Pub Dt:
12/04/2003
Title:
HYDROCARBON RECOVERY
75
Patent #:
6769491
Issue Dt:
08/03/2004
Application #:
10165613
Filing Dt:
06/07/2002
Publication #:
US20030226668
Pub Dt:
12/11/2003
Title:
ANCHORING AND SEALING SYSTEM FOR A DOWNHOLE TOOL
76
Patent #:
6769491
Issue Dt:
08/03/2004
Application #:
10165613
Filing Dt:
06/07/2002
Publication #:
US20030226668
Pub Dt:
12/11/2003
Title:
ANCHORING AND SEALING SYSTEM FOR A DOWNHOLE TOOL
77
Patent #:
6698297
Issue Dt:
03/02/2004
Application #:
10186382
Filing Dt:
06/28/2002
Publication #:
US20040000197
Pub Dt:
01/01/2004
Title:
VENTURI AUGMENTED FLOW METER
78
Patent #:
6698297
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Title:
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Title:
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Assignors
1
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Exec Dt:
09/30/2021
2
WEATHERFORD NETHERLANDS B.V.
Exec Dt:
09/30/2021
3
WEATHERFORD NORGE AS
Exec Dt:
09/30/2021
4
HIGH PRESSURE INTEGRITY, INC.
Exec Dt:
09/30/2021
5
PRECISION ENERGY SERVICES, INC.
Exec Dt:
09/30/2021
6
WEATHERFORD CANADA LTD.
Exec Dt:
09/30/2021
7
WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH
Exec Dt:
09/30/2021
8
WEATHERFORD U.K. LIMITED
Exec Dt:
09/30/2021
Assignee
1
WILMINGTON TRUST, NATIONAL ASSOCIATION
50 SOUTH SIXTH STREET
MINNEAPOLIS, MINNESOTA 55402
Correspondence name and address
MARISSA A MCDONOUGH
1285 AVENUE OF THE AMERICAS
PAUL WEISS RIFKIND WHARTON & GARRISON LLP
NEW YORK, NY 10019

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