ClassID:

135305

E21B17/046 - CPC Classification

Classification description:

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings Cables; ; Tubings; Couplings; joints between rod and bit or between rod and rod with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches

Recent Application in this class:
#1
20260103863
2026-04-16

FOUNDATION SUPPORT SYSTEM SHAFT COUPLER FABRICATION AND ASSEMBLY

#2
20260049531
2026-02-19

LATCH COLLET INCLUDING UNIQUE TORQUE BUTTONS

#3
20260009301
2026-01-08

LATCH COUPLING INCLUDING UNIQUE AXIAL ALIGNMENT SLOTS

#4
20250389162
2025-12-25

COUPLING MEMBER FOR USE WITH A CONNECTION

#5
20250376902
2025-12-11

LATCH COLLET INCLUDING UNIQUE COLLET PROP BUTTONS

#6
20250369296
2025-12-04

ADAPTER ASSEMBLY FOR USE WITH A WELLBORE TOOL STRING

#7
20250361777
2025-11-27

CONNECTOR ASSEMBLY FOR USE WITH MICROTUNNELING APPARATUS

#8
20250347180
2025-11-13

METHOD FOR PREPARING A WELLBORE

#9
20250327362
2025-10-23

DIRECTIONAL DRILL SECURING DEVICE AND METHOD

#10
20250314140
2025-10-09

DIRECTIONAL DRILL VICE AND METHOD

#11
20250215753
2025-07-03

MICROTUNNELING APPARATUS

#12
20250215750
2025-07-03

MICROTUNNELING APPARATUS

#13
20250207344
2025-06-26

BUILDING FOUNDATION SUPPORT SYSTEM WITH RIB AND GROOVE INTERLOCK DRIVE TOOL COUPLER COMPONENT AND PILES

#14
20250207343
2025-06-26

FOUNDATION SUPPORT SYSTEM AND METHOD OF INSTALLATION WITH SELF-ALIGNING TORQUE TRANSMITTING COUPLERS

#15
20250171975
2025-05-29

FOUNDATION SUPPORT SYSTEM SHAFT COUPLER FABRICATION AND ASSEMBLY

#16
20250067151
2025-02-27

LATERAL LOCATING ASSEMBLY HAVING ONE OR MORE PRODUCTION PORTS

#17
20250043648
2025-02-06

FLUID CONNECTION AND SEAL USEFUL AT WELLHEADS

#18
20250034955
2025-01-30

DOWN-THE-HOLE HAMMER HAVING AN INVERTED CASING

#19
20250034954
2025-01-30

TUBING ANCHOR FOR A MAGMA WELLBORE

#20
20250020041
2025-01-16

INTEGRATED SCREEN FOR ELECTRICAL FLOW CONTROL VALVE

#21
20250003302
2025-01-02

Whipstock integrated to completion string for coiled tubing operations

#22
20240418045
2024-12-19

Snap latch or collet profile

#23
20240418044
2024-12-19

No-Rotation Latch Coupling And Latch For Casing Assemblies

#24
20240369166
2024-11-07

SPLINE LOCK RESTRAINED PIPE JOINING SYSTEM FOR PLASTIC PIPE

#25
20240352824
2024-10-24

System and methods for a quick release collar in cementing casing strings

#26
20240318546
2024-09-26

System and Method for Orienting and Anchoring Downhole Tools

#27
20240209972
2024-06-27

PIPE CONNECTION FOR EXPLORATION AND PRODUCTION OF A HYDROCARBON WELL

#28
20240167343
2024-05-23

DRILL BIT ASSEMBLY COMPRISING AN EXPANDABLE RETAINING SLEEVE

#29
20240151111
2024-05-09

Downhole connector orientation for wetmate connectors

#30
20240117713
2024-04-11

TWO-PART DRILLING AND RUNNING TOOL INCLUDING A ONE WAY MECHANISM

#31
20240117712
2024-04-11

LATCH COLLET INCLUDING UNIQUE TORQUE BUTTONS

#32
20240117701
2024-04-11

DOWNHOLE TOOL INCLUDING A PACKER ASSEMBLY

#33
20240117688
2024-04-11

Dual rod assembly and collar installation method

#34
20240117685
2024-04-11

LATCH COUPLING INCLUDING UNIQUE AXIAL ALIGNMENT SLOTS

#35
20240052711
2024-02-15

PERCUSSION DRILLING APPARATUS AND TORQUE TRANSFER METHOD

#36
20240026745
2024-01-25

ADAPTER ASSEMBLY FOR USE WITH A WELLBORE TOOL STRING

#37
20240003198
2024-01-04

ANTI-ROTATION COUPLING FOR USE IN A DOWNHOLE ASSEMBLY

#38
20230408001
2023-12-21

FLEXIBLE CASING SYSTEMS AND METHODS

#39
20230374867
2023-11-23

DIRECTIONAL DRILL SECURING DEVICE AND METHOD

#40
20230358107
2023-11-09

Directional drill vice and method

#41
20230349274
2023-11-02

Ring latch locking shaft coupling for bi-directional loading

#42
20230349238
2023-11-02

Downhole tool for connecting with a conveyance line

#43
20230340851
2023-10-26

Locking fluid connection with seal

#44
20230313621
2023-10-05

Multifunctional drilling enhancement tool and method

#45
20230272687
2023-08-31

Fluid connection assembly with adapter release

#46
20230235628
2023-07-27

Downhole coupling mechanism

#47
20230235523
2023-07-27

Foundation support system shaft coupler fabrication and assembly

#48
20230228172
2023-07-20

Method for positioning a multilateral junction without the need for a deflector assembly

#49
20230228171
2023-07-20

Lateral locating assembly having one or more production ports

#50
20230228170
2023-07-20

WHIPSTOCK WITH DETACHABLE WHIPFACE AND SEALING CAPABILITIES FOR MULTILATERAL SYSTEMS

#51
20230193701
2023-06-22

Dual pipe drill head quick interchange joint

#52
20230175226
2023-06-08

Modular foundation support systems and methods including shafts with interlocking torque transmitting couplings

#53
20230151912
2023-05-18

PIPE CONNECTION

#54
20230125337
2023-04-27

Locking apparatus for drilling rig components

#55
20230121030
2023-04-20

Dual rod assembly and collar installation method

#56
20230092039
2023-03-23

Anti-whirl stabilization tools

#57
20230074816
2023-03-09

Drilling assembly for inserting a rock bolt

#58
20230044315
2023-02-09

Drilling system and method of using same

#59
20220412172
2022-12-29

Quick connection interface for electrical submersible pump components

#60
20220381094
2022-12-01

Shear coupling and method of assembling same

#61
20220356970
2022-11-10

Mechanical connector utilizing shear pins to transfer torque

#62
20220356969
2022-11-10

Mechanical connector utilizing keys to transfer torque

#63
20220356968
2022-11-10

Mechanical connector utilizing interlocked threads to transfer torque

#64
20220349502
2022-11-03

Mechanical connector utilizing dog-clutch teeth to transfer torque

#65
20220349264
2022-11-03

Rod section of a ground drilling rod

#66
20220341293
2022-10-27

Multilateral junction including articulating structure

#67
20220316284
2022-10-06

Variable-length axial linkage for tubular running tools

#68
20220282579
2022-09-08

Shear coupling for sucker rod string

#69
20220275688
2022-09-01

Drive sub for a drilling assembly

#70
20220266377
2022-08-25

UPSET TELEMETRY TOOL JOINT AND METHOD

#71
20220259946
2022-08-18

Catcher for dropped objects

#72
20220228446
2022-07-21

Cementing and sand control system and methodology

#73
20220195810
2022-06-23

Cementing adapter systems and methods

#74
20220120145
2022-04-21

Dual pipe drill head quick interchange joint

#75
20220106841
2022-04-07

Directly connected drill pipe applicable to extreme conditions

#76
20220098947
2022-03-31

Adapter assembly for use with a wellbore tool string

#77
20220090452
2022-03-24

Rod section of a ground drilling rod

#78
20220074274
2022-03-10

Hardened groove for inductive channel

#79
20220049557
2022-02-17

Tool coupler with sliding coupling members for top drive

#80
20210396080
2021-12-23

Downhole coupling mechanism

#81
20210388680
2021-12-16

Self-locking coupler

#82
20210372206
2021-12-02

QUICK CONNECT DEVICE FOR FRACTRAP AND METHOD

#83
20210324684
2021-10-21

Insert for use with dual-member pipe joint

#84
20210310314
2021-10-07

Directional drill securing device and method

#85
20210301857
2021-09-30

Shear coupling and method of assembling same

#86
20210293107
2021-09-23

Tandem seal adapter, adapter assembly with tandem seal adapter, and wellbore tool string with adapter assembly

#87
20210246753
2021-08-12

Fluid connection with lock and seal

#88
20210222500
2021-07-22

DIRECTLY CONNECTED DRILL PIPE APPLICABLE TO EXTREME CONDITIONS

#89
20210207444
2021-07-08

Directional drill vice and method

#90
20210207442
2021-07-08

Cam indexing apparatus

#91
20210190148
2021-06-24

PDM transmission with sliding contact between convex shaft pins and concave bearings surfaces

#92
20210189802
2021-06-24

Dual rod directional drilling system

#93
20210164595
2021-06-03

Methods for decreasing stress in flange bolting

#94
20210148177
2021-05-20

Dual rod assembly and collar installation method

#95
20210131197
2021-05-06

Methods for mitigating whirl

#96
20210131191
2021-05-06

Drilling system and method of using same

#97
20210102436
2021-04-08

Fluid connection assembly

#98
20210095530
2021-04-01

Downhole coupling mechanism

#99
20210071381
2021-03-11

Modular foundation support systems and methods including shafts with interlocking torque transmitting couplings

#100
20210040842
2021-02-11

Data transmission system

#101
20210040819
2021-02-11

Well string tool and method for using the same

#102
20210010332
2021-01-14

Anti-rotation coupling for use in a downhole assembly

#103
20200378188
2020-12-03

Directional drill vice and method

#104
20200362635
2020-11-19

Dual rod directional drilling system

#105
20200332930
2020-10-22

Mechanical connectors

#106
20200325735
2020-10-15

Drill pipe, and system and method for laying a pipeline

#107
20200325734
2020-10-15

Threaded connection partially in a self-locking engagement

#108
20200300040
2020-09-24

Dual rod directional drilling system

#109
20200291728
2020-09-17

Rod coupler and coupled rod assembly

#110
20200270953
2020-08-27

Apparatus for connecting drilling components between rig and riser

#111
20200240570
2020-07-30

Coupling assembly and protective ring therefor

#112
20200240223
2020-07-30

Methods and systems for disconnecting casing

#113
20200165880
2020-05-28

Dual rod directional drilling system

#114
20200141204
2020-05-07

Casing hanger assembly

#115
20200141191
2020-05-07

ROD SECTION OF AN EARTH DRILLING STRING

#116
20200115966
2020-04-16

Coiled tubing connector with internal anchor and external seal

#117
20200072010
2020-03-05

Fluid connection and seal

#118
20200063505
2020-02-27

Surface platform for use with surface bops and high-pressure risers

#119
20200040668
2020-02-06

Dual pipe drill head quick interchange joint

#120
20200018126
2020-01-16

Collar with stepped retaining ring groove

#121
20200003015
2020-01-02

Connections for use in high-pressure risers and make-up equipment therefor

#122
20190390522
2019-12-26

Axial and rotational alignment system and method

#123
20190390521
2019-12-26

Drilling component coupler for reinforcement

#124
20190368283
2019-12-05

Combined multi-coupler

#125
20190366451
2019-12-05

Drill Bit Having a Spiral-Tube-Shaped Drill Shaft and Method for Producing a Spiral-Tube-Shaped Drill Shaft for a Drill Bit

#126
20190360294
2019-11-28

Completion interface systems for use with surface BOPS

#127
20190323638
2019-10-24

Anti-rotation device for connector assembly

#128
20190301249
2019-10-03

Remotely operated fluid connection and seal

#129
20190292863
2019-09-26

Downhole tool assembly

#130
20190292855
2019-09-26

Downhole force generating tool

#131
20190284884
2019-09-19

Rod or tube lifting apparatus

#132
20190271196
2019-09-05

Spoolable splice connector and method for tubing encapsulated cable

#133
20190264841
2019-08-29

ENHANCEMENTS OF MECHANICAL CONNECTOR TECHNOLOGY

#134
20190264507
2019-08-29

Directional drill bit attachment tools and method

#135
20190257158
2019-08-22

Orienting sub

#136
20190226286
2019-07-25

Directional drill securing device and method

#137
20190195286
2019-06-27

Universal driveshaft assembly

#138
20190195031
2019-06-27

End fitting for sucker rods

#139
20190195027
2019-06-27

Rotationally selectable lock of shaft to housing

#140
20190186209
2019-06-20

Pipe joint having coupled adapter

#141
20190145187
2019-05-16

Float equipment for a wellbore

#142
20190145186
2019-05-16

Dual Motor Bidirectional Drilling

#143
20190136664
2019-05-09

Device and method for opening and stopping a toe valve

#144
20190136663
2019-05-09

Device and method for opening and stopping a toe valve

#145
20190136642
2019-05-09

Connector for assembling two sections of a riser, comprising an outer locking ring and securing means

#146
20190136630
2019-05-09

Dual member pipe joint for a dual member drill string

#147
20190127940
2019-05-02

Modular foundation support systems and methods including shafts with interlocking, self-aligning and torque transmitting couplings

#148
20190112879
2019-04-18

DRILL PIPE, AND SYSTEM AND METHOD FOR LAYING A PIPELINE

#149
20190106946
2019-04-11

Coiled Tubing Connector with Internal Anchor and External Seal

#150
20190100970
2019-04-04

Combined multi-coupler with rotating locking method for top drive

#151
20190091777
2019-03-28

Drill bit with an exchangeable cutting portion

#152
20190040914
2019-02-07

Downhole tool coupling system

#153
20190040692
2019-02-07

Insert for use with dual-member pipe joint

#154
20190032424
2019-01-31

Well tool device

#155
20190027860
2019-01-24

Tool coupler for use with a top drive

#156
20190024721
2019-01-24

Combined multi-coupler for top drive

#157
20190010768
2019-01-10

Shear coupling

#158
20190003265
2019-01-03

Manual pipe valve connector for jointed pipe connections with quick release check valve assembly and uses thereof

#159
20180363390
2018-12-20

Connector for assembling two riser segments, comprising an internal locking ring and removable pins

#160
20180363388
2018-12-20

Combined multi-coupler with locking clamp connection for top drive

#161
20180355676
2018-12-13

Connector for assembling two riser segments, comprising an external locking ring and removable pins

#162
20180340377
2018-11-29

Sophisticated contour for downhole tools

#163
20180334861
2018-11-22

Self-locking coupler

#164
20180320799
2018-11-08

Method for subsea deployment of discrete lengths of flexible jumper pipes

#165
20180320457
2018-11-08

Directional drill vice and method

#166
20180313171
2018-11-01

Dual rod directional drilling system

#167
20180313169
2018-11-01

Dual rod directional drilling system

#168
20180313157
2018-11-01

Dual rod directional drilling system

#169
20180305986
2018-10-25

Preloadable connectors for tubing

#170
20180305985
2018-10-25

Stop collar attachment

#171
20180299046
2018-10-18

Shunt tube connection assembly

#172
20180298730
2018-10-18

Shroud assembly

#173
20180266193
2018-09-20

Device arranged for attaching a pipe stem on a tubular body

#174
20180266191
2018-09-20

Collet device with an adjustable snap value

#175
20180258717
2018-09-13

Combined multi-coupler

#176
20180252055
2018-09-06

Method for upgrading a connector assembling two riser pipe sections by means of a dismountable locking collar

#177
20180252052
2018-09-06

Connection device

#178
20180245433
2018-08-30

Tool coupler with rotating coupling method for top drive

#179
20180245432
2018-08-30

Coupler with threaded connection for pipe handler

#180
20180238120
2018-08-23

HIGH-TENSILE, THIN-WALL DIFFERENTIAL THREADED COUPLING

#181
20180238119
2018-08-23

Transmission assembly for downhole motor

#182
20180223605
2018-08-09

Manoeuvring member

#183
20180209227
2018-07-26

Directional drill stem rod loader and method

#184
20180209223
2018-07-26

ROTATING STAGE COLLAR

#185
20180195366
2018-07-12

Shape-Memory Alloy Actuated Fastener

#186
20180171725
2018-06-21

Orientation system and method

#187
20180171724
2018-06-21

Running tool lock mechanism

#188
20180155891
2018-06-07

Interlocking, self-aligning and torque transmitting coupler assembly, systems and methods for connecting, installing, and supporting foundation elements

#189
20180148985
2018-05-31

Horizontal directional drill pipe drive connection with locking feature

#190
20180148984
2018-05-31

Electromagnetic telemetry gap sub assembly with insulating collar

#191
20180128058
2018-05-10

A COUPLING

#192
20180119853
2018-05-03

CONNECTION METHODS AND SYSTEMS

#193
20180100354
2018-04-12

Method of using a downhole force generating tool

#194
20180094489
2018-04-05

BHA transmission with laminated rubber bearings

#195
20180087330
2018-03-29

Quick connect system for setting tool

#196
20180087326
2018-03-29

Mast with rack assembly

#197
20180080590
2018-03-22

Flow line connector assembly

#198
20180051836
2018-02-22

Enhancements of mechanical connector technology

#199
20180051525
2018-02-22

Dual member pipe joint for a dual member drill string

#200
20180038171
2018-02-08

Alignable Connector

#201
20180038166
2018-02-08

Downhole force generating tool

#202
20180030789
2018-02-01

Connecting assembly and receptacle adapted to receive said connecting assembly for connecting two tubing sections, and method for installing and connecting two tubing sections in a wellbore

#203
20180016847
2018-01-18

Bit for drilling with casing or liner string and manufacture thereof

#204
20180002990
2018-01-04

Collar with stepped retaining ring groove

#205
20180002989
2018-01-04

Shunt system with shroud secured by a locking member

#206
20170370163
2017-12-28

Tapered spline connection for drill pipe, casing, and tubing

#207
20170350199
2017-12-07

Thread form for connector collar of offshore well riser pipe

#208
20170314339
2017-11-02

Drill string element and detachable driving element

#209
20170298699
2017-10-19

Dynamic riser mechanical connector

#210
20170275954
2017-09-28

PRESSURE COMPENSATION MECHANISM FOR A SEAL ASSEMBLY OF A ROTARY DRILLING DEVICE

#211
20170268298
2017-09-21

Interlock pipe connection

#212
20170248245
2017-08-31

Latch assembly for a pumping system and method therefor

#213
20170241213
2017-08-24

BIT RETAINING SYSTEM

#214
20170241206
2017-08-24

SONDE HOUSING AND BIT BODY ARRANGEMENT FOR HORIZONTAL DIRECTIONAL DRILLING

#215
20170219141
2017-08-03

Quick connect connection

#216
20170219014
2017-08-03

Soft Coating for Splined Connections Between Motor Shafts of Submersible Pump Assembly

#217
20170211346
2017-07-27

REDUCED FRICTION J-LATCH DEVICE

#218
20170204682
2017-07-20

Jumper Tube Connector/Connection Apparatus and Method

#219
20170191351
2017-07-06

GRAVEL PACK JOINT

#220
20170175459
2017-06-22

Mechanical connector of long torsional and bending fatigue life

#221
20170159717
2017-06-08

Universal driveshaft assembly

#222
20170152978
2017-06-01

Locking collar quick union connection

#223
20170145757
2017-05-25

Multi-flow pipe and pipe couplings therefor for use in fracture flow hydrocarbon recovery processes

#224
20170138133
2017-05-18

Earth boring systems and methods with integral debris removal

#225
20170130543
2017-05-11

Detecting and remediating downhole excessive pressure condition

#226
20170114942
2017-04-27

Coupling assembly and protective ring therefor

#227
20170101829
2017-04-13

Coupling apparatus for connecting two drill pipe sections and a method of using same

#228
20170089399
2017-03-30

Driveshaft retention assembly

#229
20170089149
2017-03-30

JOINT AND JOINT PARTS FOR DRILL STRING COMPONENTS AND COMPONENTS

#230
20170081927
2017-03-23

Relockable shearing swivel tool apparatus and method

#231
20170074075
2017-03-16

Modular connection system for top drive

#232
20170074052
2017-03-16

Riser pipe section equipped with a locking ring arranged between the main tube and the auxiliary line

#233
20170074051
2017-03-16

Multi-lead quick connect threaded connection

#234
20170067297
2017-03-09

Tapered spline connection for drill pipe, casing, and tubing

#235
20170044840
2017-02-16

Mating connector for downhole tool

#236
20170037590
2017-02-09

Interlocking, self-aligning and torque transmitting coupler assembly, systems and methods for connecting, installing, and supporting foundation elements

#237
20170030146
2017-02-02

Rotatively mounting cutters on a drill bit

#238
20160362943
2016-12-15

DRILL STRING COMPONENT COUPLING DEVICE

#239
20160356098
2016-12-08

Jumper Tube Connector/Connection Apparatus and Method

#240
20160356096
2016-12-08

Anti-rotation key for connector assembly

#241
20160340982
2016-11-24

Pipe joint having coupled adapter

#242
20160333939
2016-11-17

Drive shaft connection assembly

#243
20160333540
2016-11-17

Interlocking, self-aligning and torque transmitting coupler assembly

#244
20160305224
2016-10-20

Gravel packing apparatus having locking jumper tubes

#245
20160298395
2016-10-13

QUICK CONNECT APPARATUS AND METHOD

#246
20160290110
2016-10-06

Screened communication connector for a production tubing joint

#247
20160281442
2016-09-29

Adjustable shear assembly

#248
20160281432
2016-09-29

Direct torque helical displacement well and hydrostatic liquid pressure relief device

#249
20160273290
2016-09-22

Downhole latch assembly

#250
20160258562
2016-09-08

Riser connector assembly

#251
20160258248
2016-09-08

Shape-memory alloy actuated fastener

#252
20160251945
2016-09-01

Running tool and liner hanger contingency release mechanism

#253
20160222747
2016-08-04

Casing hanger assembly

#254
20160222738
2016-08-04

Connection between wellbore components

#255
20160208564
2016-07-21

On-off tool for sucker rod string

#256
20160208563
2016-07-21

Riser joint connection

#257
20160201404
2016-07-14

Device for the connection of rods for rotational drive of a downhole pumping apparatus

#258
20160186503
2016-06-30

Connector system

#259
20160160573
2016-06-09

Drill string, connection system, earth drilling device and method to connect a drill string section

#260
20160153251
2016-06-02

System, apparatus, and method for dual-activity drilling

#261
20160084027
2016-03-24

Downhole system having selective locking apparatus and method

#262
20160084016
2016-03-24

Horizontal directional drill pipe drive connection with locking feature

#263
20160084015
2016-03-24

Pipe coupling

#264
20160047502
2016-02-18

Quick connection arrangements with locking mechanisms

#265
20160032664
2016-02-04

Drilling component retention system and method

#266
20160017672
2016-01-21

Overshot tool having latch control means

#267
20160010399
2016-01-14

System and method for coupling a wellbore survey tool to a retrievable sensor module

#268
20150376956
2015-12-31

Downhole control line connector

#269
20150368989
2015-12-24

Downhole coupling

#270
20150361730
2015-12-17

Compression set downhole clutch

#271
20150354303
2015-12-10

Method of using a downhole force generating tool

#272
20150354288
2015-12-10

Anti-Rotation Device And Method For Alternate Deployable Electric Submersible Pumps

#273
20150354282
2015-12-10

Downhole force generating tool

#274
20150354281
2015-12-10

Downhole force generating tool

#275
20150343540
2015-12-03

Drill bit with an exchangeable cutting portion

#276
20150343539
2015-12-03

Cutting portion for a drill bit

#277
20150337642
2015-11-26

Oil well improvement system—well monitor and control subsystem

#278
20150337607
2015-11-26

Subsea connector assembly

#279
20150337602
2015-11-26

Method of using a downhole force generating tool

#280
20150330156
2015-11-19

Swivel and method of use

#281
20150330155
2015-11-19

Electromagnetic telemetry gap sub assembly with insulating collar

#282
20150330151
2015-11-19

Apparatus for drilling and lining a borehole

#283
20150328694
2015-11-19

Drill bit with an exchangeable cutting portion

#284
20150323109
2015-11-12

Drill Pipe Connector and Method

#285
20150322730
2015-11-12

Merlin drilling riser assembly

#286
20150275587
2015-10-01

Non-threaded tubular connection

#287
20150267499
2015-09-24

Modular annular debris barrier with rotationally locked segments

#288
20150267478
2015-09-24

Adjustable Bent Drilling Tool Having in situ Drilling Direction Change Capability

#289
20150240572
2015-08-27

Shunt tube connector assembly and method

#290
20150233216
2015-08-20

Shunt tube connections for wellscreen assembly

#291
20150233201
2015-08-20

Coring tools with improved reliability during core jams, and related methods

#292
20150233192
2015-08-20

Dual member pipe joint for a dual member drill string

#293
20150226018
2015-08-13

Downhole separation apparatus and method

#294
20150226017
2015-08-13

Drilling assembly

#295
20150191982
2015-07-09

Device arranged for attaching a pipe stem on a tubular body

#296
20150176341
2015-06-25

Tapered Spline Connection for Drill Pipe, Casing, and Tubing

#297
20150176340
2015-06-25

Connection system for subsea connection of a subsea umbilical to a subsea appliance

#298
20150152698
2015-06-04

Systems and methods for riser coupling

#299
20150152694
2015-06-04

Systems and methods for riser coupling

#300
20150152693
2015-06-04

Systems and methods for riser coupling