ClassID:

135301

E21B17/042 - 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 Threaded

Sub-classes:
Recent Application in this class:
#1
20260139552
2026-05-21

WELLBORE TUBULAR STRING HAVING THREADED CONNECTIONS

#2
20260139549
2026-05-21

MILLIMETER WAVE DRILL PIPE SYSTEM

#3
20260117622
2026-04-30

Select Port Injection Collar Device and Method of Use

#4
20260117605
2026-04-30

EXTENDED WEAR DRILL PIPES AND METHODS OF MAKING AND USING SAME

#5
20260117604
2026-04-30

THREADED CONNECTION

#6
20260117603
2026-04-30

Internally-Wound Stop Ring

#7
20260117602
2026-04-30

PREMIUM THREADED CONNECTIONS AND METHODS OF MAKING AND USING SAME

#8
20260117601
2026-04-30

PREMIUM THREADED CONNECTIONS AND METHODS OF MAKING AND USING SAME

#9
20260117600
2026-04-30

THREADED CONNECTION

#10
20260092659
2026-04-02

High Torque Connection With Load Reduction Zone

#11
20260078642
2026-03-19

DRILL PIPE FOR ROTARY DRILLING

#12
20260063007
2026-03-05

TECHNIQUES FOR POSITIONING PRECISION BETWEEN SUBASSEMBLIES

#13
20260063006
2026-03-05

END PIECE OF DRILL PIPE, DRILL PIPE ASSEMBLY AND METHOD

#14
20260049676
2026-02-19

Coupled Connection for Tight Clearance Casing Strings in Oil and Gas Wells

#15
20250389161
2025-12-25

Coupled Connection for Drilling-With-Casing Operations and Tight Clearance Casing Strings in Oil and Gas Wells

#16
20250376896
2025-12-11

INSULATED DRILL PIPES AND PROCESSES OF MAKING AND USING SAME

#17
20250369292
2025-12-04

TUBULAR COMPONENT COMPRISING A THREADED CONNECTION ELEMENT

#18
20250347179
2025-11-13

WEDGE THREAD CONNECTION FOR TUBULAR GOODS

#19
20250327362
2025-10-23

DIRECTIONAL DRILL SECURING DEVICE AND METHOD

#20
20250314140
2025-10-09

DIRECTIONAL DRILL VICE AND METHOD

#21
20250305372
2025-10-02

FLUID TRANSFER ASSEMBLY

#22
20250257823
2025-08-14

THREADED JOINT

#23
20250242425
2025-07-31

WORK STRING TUBING CONNECTION RESTORATION

#24
20250230718
2025-07-17

TUBULAR CONNECTION CONTROL USING DETECTABLE FEATURE

#25
20250216017
2025-07-03

PROTECTOR FOR TUBULAR THREADED ELEMENTS

#26
20250207466
2025-06-26

TUBULAR THREADED JOINT

#27
20250170667
2025-05-29

WELD JOINTS INVOLVING DISSIMILAR METALS AND METHODS FOR FORMING SAME

#28
20250163765
2025-05-22

Drill String Components Having Multiple-Thread Joints

#29
20250154836
2025-05-15

CONTROL SYSTEM, ROCK DRILLING RIG, AND METHOD FOR CONTROLLING COUPLING MEASURES

#30
20250129685
2025-04-24

RCD HOUSING AND COUPLING METHOD

#31
20250116357
2025-04-10

OIL-WELL METAL PIPE

#32
20250101814
2025-03-27

Pipe Connector

#33
20250092969
2025-03-20

HIGH TORQUE CONNECTION WITH ENHANCED BREAK IN PERFORMANCE

#34
20250084709
2025-03-13

MAKE-UP/BREAK-OUT EVALUATION METHOD FOR THREADED JOINT FOR OIL COUNTRY TUBULAR GOODS

#35
20250067130
2025-02-27

COMPRESSIBLE SLEEVES, MAGNETIC ASSEMBLIES, AND METHODS TO RESTRAIN A COMPONENT OF A DOWNHOLE TOOL

#36
20250060058
2025-02-20

Threaded and coupled tubular connection incorporating a seal ring and method of make-up

#37
20250059843
2025-02-20

Fixed-Volume Setting Tool

#38
20250052149
2025-02-13

SYSTEM AND METHOD FOR IMAGING SUBSURFACE DENSITY USING COSMIC RAY MUONS

#39
20250034956
2025-01-30

Torsional damping and flexible components in downhole systems and methods

#40
20250034951
2025-01-30

CHAMFERED SINKER BAR CONNECTION

#41
20250020041
2025-01-16

INTEGRATED SCREEN FOR ELECTRICAL FLOW CONTROL VALVE

#42
20250012384
2025-01-09

High torque connection with enhanced break in performance

#43
20250003533
2025-01-02

SOLID LUBRICANT FOR ZN-NI COATING ON A THREADED TUBULAR ELEMENT

#44
20240426179
2024-12-26

Thread pitch

#45
20240418045
2024-12-19

Snap latch or collet profile

#46
20240384819
2024-11-21

THREADED TUBULAR MEMBERS EMPLOYING METAL-TO-METAL SEALS

#47
20240384605
2024-11-21

THREADED CONNECTION

#48
20240384604
2024-11-21

THREADED CONNECTION FOR HAMMERING INTERCONNECTED TUBULAR MEMBERS

#49
20240352806
2024-10-24

OIL-WELL METAL PIPE

#50
20240337337
2024-10-10

IMPROVEMENTS TO A JOINT BETWEEN OIL AND GAS PIPE SECTIONS

#51
20240318516
2024-09-26

TUBING HANGER FOR WELLSITE

#52
20240309709
2024-09-19

THREAD FORM FOR DRILL BIT APPLICATION

#53
20240280194
2024-08-22

Threaded Connection

#54
20240280000
2024-08-22

MULTILATERAL JUNCTION

#55
20240254404
2024-08-01

Agent for forming solid lubricating coating film, oil country tubular goods, threaded joint for oil country tubular goods, and method for manufacturing oil country tubular goods

#56
20240247553
2024-07-25

THREADED CONNECTION

#57
20240229569
2024-07-11

Roller sub for reducing torque on a tool string

#58
20240218763
2024-07-04

Methods and systems for fracing

#59
20240218749
2024-07-04

Drill String Components Having Multiple-Thread Joints

#60
20240209695
2024-06-27

Connection device for tubular elements

#61
20240200413
2024-06-20

REAL TIME SHOULDER POINT DETERMINATION IN THREADED CONNECTION MAKE-UP

#62
20240200410
2024-06-20

OIL WELL STEEL PIPE WITH THREADED CONNECTION, METHOD FOR PRODUCING OIL WELL STEEL PIPES CONNECTED BODY USING OIL WELL STEEL PIPE WITH THREADED CONNECTION, AND METHOD FOR PRODUCING OIL WELL STEEL PIPE WITH THREADED CONNECTION

#63
20240159113
2024-05-16

Dimensioning of a threaded axial gap

#64
20240159107
2024-05-16

Underground Drill Rig And Systems And Methods Of Using Same

#65
20240142026
2024-05-02

Pipe connection systems in oil and gas applications

#66
20240125185
2024-04-18

DOWNHOLE TOOL WITH RADIAL SHOCK ABSORBER AND STABILIZER

#67
20240125184
2024-04-18

Method for attaching ring, ring and system

#68
20240093554
2024-03-21

Two-stage reverse-torque bent screw orientation tool

#69
20240084650
2024-03-14

Swivel system for downhole well tool orientation

#70
20240076943
2024-03-07

WIRELINE TOP SUB QUICK CONNECT

#71
20240068302
2024-02-29

DEVICES, SYSTEMS, AND METHODS FOR A REINFORCING RING IN A BIT

#72
20240018985
2024-01-18

THREADED AND COUPLED TUBULAR GOODS CONNECTION

#73
20240011562
2024-01-11

SEAL SYSTEM FOR ANNULAR COMPONENTS

#74
20230408001
2023-12-21

FLEXIBLE CASING SYSTEMS AND METHODS

#75
20230399898
2023-12-14

Coupled Connection for Tight Clearance Casing Strings in Oil and Gas Wells

#76
20230383612
2023-11-30

Wear resistant tubular members and systems and methods for producing the same

#77
20230383608
2023-11-30

Drill string joint design

#78
20230374867
2023-11-23

DIRECTIONAL DRILL SECURING DEVICE AND METHOD

#79
20230358107
2023-11-09

Directional drill vice and method

#80
20230358105
2023-11-09

Swivel system for downhole well tool orientation

#81
20230349243
2023-11-02

TORQUE RING SELECTION

#82
20230347438
2023-11-02

Work string tubing connection restoration

#83
20230340874
2023-10-26

Acoustic telemetry tool for high mechanical loading

#84
20230332475
2023-10-19

Fixed-volume setting tool

#85
20230279730
2023-09-07

Oil country tubular goods casing coupling

#86
20230272686
2023-08-31

Inverted tapered overshot

#87
20230250902
2023-08-10

Threaded joint

#88
20230243219
2023-08-03

Thread connection for casings

#89
20230235650
2023-07-27

Fluid Conditioning and/or Treatment System

#90
20230147500
2023-05-11

INSERT PRECISION-INTEGRATED INTO A BLANK BODY BY ADDITIVE MANUFACTURING

#91
20230129252
2023-04-27

DRILL PIPE

#92
20230107302
2023-04-06

Elliptical design for male thread clearance

#93
20230093792
2023-03-23

Work string tubing connection restoration

#94
20230088330
2023-03-23

WEDGE THREAD CONNECTION FOR TUBULAR GOODS

#95
20230083926
2023-03-16

Downhole bipartite data transmisson assembly

#96
20230082305
2023-03-16

Leak-resistant threaded pipe connection

#97
20230082225
2023-03-16

Interchangeable lead impression block

#98
20230079368
2023-03-16

Tubular string make-up methods utilizing image processing

#99
20230074816
2023-03-09

Drilling assembly for inserting a rock bolt

#100
20230074801
2023-03-09

Triaxial leak criterion with quadratic dependence on effective pressure for optimizing threaded connections in well tubulars

#101
20230066104
2023-03-02

Self-locking threaded connection partially in non-locking engagement

#102
20230059150
2023-02-23

Threaded connection for pipes and method for producing threaded connection for pipes

#103
20230045109
2023-02-09

Direct Connectingh Gun Assemblies for Drilling Well Perforations

#104
20230044251
2023-02-09

Threaded joint for pipes

#105
20230043864
2023-02-09

Nested drill bit assembly for drilling with casing

#106
20230024535
2023-01-26

COATED PIPE RESISTANT TO CASING WEAR

#107
20230010471
2023-01-12

INTEGRATED SENSOR CONNECTION

#108
20230009356
2023-01-12

DOWNHOLE DISPLACEMENT IMPACT METHOD AND IMPACT DRILLING TOOL

#109
20220403736
2022-12-22

Casing-embedded fiber-optics telemetry for real-time well integrity monitoring

#110
20220397019
2022-12-15

TUBING ANCHOR GAS VENT AND ASSOCIATED METHODS AND SYSTEMS

#111
20220389771
2022-12-08

Integrated whipstock and separation method thereof

#112
20220381380
2022-12-01

THREADED JOINT WITH SEALING SURFACE CARRIED OUT BY ADDITIVE MANUFACTURING

#113
20220372850
2022-11-24

Box by Pin Perforating Gun System and Methods

#114
20220364420
2022-11-17

COUPLING AND METHOD OF JOINING A.P.I. STANDARD PIPES FOR THE EXTRACTION OF CRUDE OILS

#115
20220356970
2022-11-10

Mechanical connector utilizing shear pins to transfer torque

#116
20220356969
2022-11-10

Mechanical connector utilizing keys to transfer torque

#117
20220356968
2022-11-10

Mechanical connector utilizing interlocked threads to transfer torque

#118
20220349502
2022-11-03

Mechanical connector utilizing dog-clutch teeth to transfer torque

#119
20220333450
2022-10-20

Running and retrieving tubing in a wellbore

#120
20220333446
2022-10-20

Electromagnetic clearance joint and assembly method thereof

#121
20220299020
2022-09-22

ARTICULATED PLUNGER ROD PUMP

#122
20220290784
2022-09-15

Threaded connection for exploration and production of a hydrocarbon well

#123
20220290505
2022-09-15

Transmission line retention sleeve for drill string components

#124
20220268108
2022-08-25

SYSTEM FOR CONNECTING PIPING SYSTEMS FOR HYDRAULIC FRACTURING OF OIL AND GAS WELLS

#125
20220252188
2022-08-11

Threaded connection for steel pipe

#126
20220251921
2022-08-11

STUFFING BOX FOR AN ARTIFICIAL LIFT SYSTEM

#127
20220251919
2022-08-11

Dual tubing string adaptor

#128
20220251907
2022-08-11

Drill pipe with fluted gun drilled passageway

#129
20220247099
2022-08-04

Apparatus and methods for connecting sections of a coaxial line

#130
20220243845
2022-08-04

THREADED JOINT WITH SHOULDER PRODUCED BY ADDITIVE MANUFACTURING

#131
20220235884
2022-07-28

THREADED CONNECTION FOR HAMMERING INTERCONNECTED TUBULAR MEMBERS

#132
20220235637
2022-07-28

Pipe connector

#133
20220228449
2022-07-21

Method of Retrofitting a Sleeve Apparatus to Repair High-pressure Flow Iron Corrosion

#134
20220220812
2022-07-14

Keyhole threads with inductive coupler for drill pipe

#135
20220213740
2022-07-07

Downhole tool with radial shock absorber and stabilizer

#136
20220205331
2022-06-30

INFLOW TEST PACKER TOOL AND METHOD

#137
20220205329
2022-06-30

Method and apparatus for gaining reentry below abandoned wellbore equipment

#138
20220205325
2022-06-30

Mechanical coupling of tubulars

#139
20220195810
2022-06-23

Cementing adapter systems and methods

#140
20220186568
2022-06-16

Hydraulic fracturing connection assembly

#141
20220186566
2022-06-16

Direct contact telemetry system for wired drill pipe

#142
20220186561
2022-06-16

Underground drill rig and systems and methods of using same

#143
20220176482
2022-06-09

Work string tubing connection restoration

#144
20220170329
2022-06-02

Disconnecting a stuck drill pipe

#145
20220163161
2022-05-26

APPARATUS FOR HANDLING PROTECTORS FOR ELONGATE OBJECTS

#146
20220163143
2022-05-26

Threaded connection

#147
20220145723
2022-05-12

Tubing drain with burst inner body

#148
20220143734
2022-05-12

Weld joints involving dissimilar metals and methods for forming same

#149
20220136338
2022-05-05

Horizontal directional drill string having dual fluid paths

#150
20220127912
2022-04-28

Sleeved gun connection

#151
20220127911
2022-04-28

Leak-resistant threaded pipe connection

#152
20220120144
2022-04-21

Tubing system for well operations

#153
20220112774
2022-04-14

Surface equipment protection from borehole pulsation energies

#154
20220106841
2022-04-07

Directly connected drill pipe applicable to extreme conditions

#155
20220099224
2022-03-31

Thread form and threaded article

#156
20220098953
2022-03-31

Spring-loaded self-adjusting stuffing box

#157
20220098929
2022-03-31

Tapered Transitional Radial Support for Drilling Tools

#158
20220090222
2022-03-24

Drill tool and method for producing same

#159
20220081981
2022-03-17

Tubing hanger for wellsite

#160
20220074273
2022-03-10

Drilling string, threaded coupling, and rod adaptor for rotary drilling

#161
20220065371
2022-03-03

THREADED CONNECTION FOR STEEL PIPE

#162
20220034206
2022-02-03

Box by pin perforating gun system and methods

#163
20220025734
2022-01-27

Mandril assembly for chemical injection in oil wells

#164
20220025730
2022-01-27

Downhole well tools and methods of using such

#165
20220025728
2022-01-27

Magnetic fishing tool and use thereof in fishing operations

#166
20220025721
2022-01-27

High pressure injection flushing heads and systems including such flushing heads

#167
20220003049
2022-01-06

Protector for the ends of an elongate member

#168
20210404283
2021-12-30

Downhole fishing tool

#169
20210404265
2021-12-30

THREADED CONNECTOR HAVING METAL-TO-METAL SEAL

#170
20210381336
2021-12-09

MODULAR SAFETY VALVE SYSTEM, VALVE MODULE AND METHOD OF SETTING PARAMETERS OF A VALVE SYSTEM

#171
20210372543
2021-12-02

Pipe connector

#172
20210372527
2021-12-02

INCREASED ROBUSTNESS OF CONTROL LINES AND TOOLS WITH EXPANDING COMPRESSION DEVICE

#173
20210372238
2021-12-02

Thermal well heat carrier transport system and method for installation of the same

#174
20210372212
2021-12-02

Quick connect setting kit and method

#175
20210363834
2021-11-25

UNIVERSAL COUPLING SYSTEM FOR A DRILL STRING

#176
20210358136
2021-11-18

Optical monitoring of threaded connection make-up and break-out processes

#177
20210355797
2021-11-18

Outwardly threadless bulkhead for perforating gun

#178
20210355765
2021-11-18

Tubular string make-up methods utilizing image processing

#179
20210355759
2021-11-18

Wired pipe and method for making

#180
20210348448
2021-11-11

Jumper tube support member

#181
20210317856
2021-10-14

Threaded and coupled tubular goods connection

#182
20210310332
2021-10-07

Assembly with tightly controlled axial gap for threaded connector insulation on vacuum insulated tubing

#183
20210310317
2021-10-07

Oilfield casing centralization tool

#184
20210310314
2021-10-07

Directional drill securing device and method

#185
20210296801
2021-09-23

Apparatus and methods for connecting sections of a coaxial line

#186
20210293117
2021-09-23

Single trip liner hanger system

#187
20210293112
2021-09-23

Isolation device with inner mandrel removed after setting

#188
20210293095
2021-09-23

Testing and validation of connectors for subsea intervention riser systems

#189
20210283751
2021-09-16

Socket driver, and method of connecting perforating guns

#190
20210262297
2021-08-26

Drill bit cutter fitted with a threaded member

#191
20210254455
2021-08-19

Downhole telemetry system having a mud-activated power generator and method therefor

#192
20210254454
2021-08-19

Downhole telemetry system having an electro-magnetic reciever and a mud pulser and method therefor

#193
20210246746
2021-08-12

Threadless float equipment and method

#194
20210246737
2021-08-12

Threaded connection for steel pipe

#195
20210238932
2021-08-05

Oil country tubular goods casing coupling

#196
20210238930
2021-08-05

Coupling assembly for elongate elements

#197
20210231240
2021-07-29

Threaded connection

#198
20210230946
2021-07-29

Coupling for rods

#199
20210222500
2021-07-22

DIRECTLY CONNECTED DRILL PIPE APPLICABLE TO EXTREME CONDITIONS

#200
20210222499
2021-07-22

Service connector

#201
20210215280
2021-07-15

Threaded joint for coupling two concentric tubes to one tube

#202
20210207444
2021-07-08

Directional drill vice and method

#203
20210199232
2021-07-01

Pipe end protector

#204
20210189846
2021-06-24

Box by pin perforating gun system and methods

#205
20210189810
2021-06-24

Spinner wear detection

#206
20210180416
2021-06-17

Sensor system for tong assembly

#207
20210172261
2021-06-10

Enhanced welded pipe, threaded connections, and methods for achieving the same

#208
20210164593
2021-06-03

Threaded connection for steel pipes

#209
20210164299
2021-06-03

Disconnect sub

#210
20210148493
2021-05-20

Flush joint high torque thread

#211
20210131195
2021-05-06

Releasable ratchet latch connector

#212
20210131194
2021-05-06

Disconnecting a stuck drill pipe

#213
20210088396
2021-03-25

Method for assessing the quality of the coupling of two tubular components

#214
20210079783
2021-03-18

Instrumented couplings

#215
20210079737
2021-03-18

Vibration isolating coupler for reducing high frequency torsional vibrations in a drill string

#216
20210071485
2021-03-11

Doping devices for applying dope to pipe threads

#217
20210071482
2021-03-11

Couplings for well pumping components

#218
20210062618
2021-03-04

Multilateral junction

#219
20210040842
2021-02-11

Data transmission system

#220
20210040802
2021-02-11

Apparatus and method of connecting tubulars

#221
20210032944
2021-02-04

Autonomous connection makeup and evaluation

#222
20210025523
2021-01-28

Screw joint for oil well pipe

#223
20210025252
2021-01-28

Spinner with consumable sleeve

#224
20210025247
2021-01-28

Roller coupling apparatus and method therefor

#225
20210025246
2021-01-28

Roller coupling apparatus and method therefor

#226
20210017817
2021-01-21

Low friction and high wear resistant sucker rod string

#227
20200399964
2020-12-24

Drill pipe and optimization thereof

#228
20200393065
2020-12-17

Vacuum insulated tubing for high pressure, high temperature wells, and systems and methods for use thereof, and methods for making

#229
20200392801
2020-12-17

System and method for disassembling drill assemblies

#230
20200392795
2020-12-17

EARTH-BORING TOOLS FOR COUPLING TO CASINGS AND RELATED SYSTEMS AND METHODS

#231
20200386351
2020-12-10

Arcuate thread form fit

#232
20200386060
2020-12-10

Quick connect device and sub

#233
20200378194
2020-12-03

Casing With External Thread and Methods of Manufacture

#234
20200378193
2020-12-03

Aligning two parts of a tubular assembly

#235
20200378188
2020-12-03

Directional drill vice and method

#236
20200370683
2020-11-26

Threaded joint for oilfield pipes

#237
20200370682
2020-11-26

Torque shoulder of a premium connection

#238
20200370415
2020-11-26

Unitized downhole tool segment

#239
20200340334
2020-10-29

Oil well tool system and apparatus

#240
20200332929
2020-10-22

Threaded joint for steel pipes

#241
20200325739
2020-10-15

Tubular rotation detection system and method

#242
20200284103
2020-09-10

Method of manufacturing a side pocket mandrel body

#243
20200263505
2020-08-20

Ground drilling device and method for drilling in soil

#244
20200249270
2020-08-06

Work string tubing connection restoration

#245
20200248535
2020-08-06

Apparatus and method for electromechanically connecting a plurality of guns for well perforation

#246
20200248509
2020-08-06

Threaded connection for steel pipe

#247
20200240570
2020-07-30

Coupling assembly and protective ring therefor

#248
20200232287
2020-07-23

Expandable connection with metal-to-metal seal

#249
20200217153
2020-07-09

Bit change mechanism for a drill rig

#250
20200206815
2020-07-02

Method for manufacturing a connecting part

#251
20200200303
2020-06-25

Method for making a threaded connection for pipes, such as oil and gas pipes

#252
20200199952
2020-06-25

Autonomous connection makeup and evaluation

#253
20200190921
2020-06-18

Guiding sleeve for aligning downhole tubulars

#254
20200190915
2020-06-18

GUIDING SLEEVE FOR ALIGNING DOWNHOLE TUBULARS

#255
20200182008
2020-06-11

Methods and apparatus for use in oil and gas well completion

#256
20200182002
2020-06-11

Large width diameter riser segment lowerable through a rotary of a drilling rig

#257
20200181990
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Drill string components having multiple-thread joints

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2020-06-11

Drill pipe and optimization thereof

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Drill pipe

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2020-05-28

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2020-04-16

Fatigue reducing shouldered connections

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2020-04-02

Threaded connection for tubular component

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2020-04-02

Mechanically perforated well casing collar

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2020-03-19

Percussive Drill String Assemblies And Systems And Methods Of Using Same

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2020-02-27

Compensation system for a tong assembly

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2020-02-27

Sensor system for tong assembly

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2020-02-20

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Pressure test plug for improved tubular threaded component

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Methods and systems for reducing drag and friction during drilling

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2020-02-06

Drill string adapter and method for inground signal coupling

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2020-01-23

Threaded connection for steel pipe

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2020-01-16

Bit support assembly incorporating damper for high frequency torsional oscillation

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2020-01-16

Collar with stepped retaining ring groove

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2020-01-16

Coupling for rods

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2020-01-09

Coupling assembly for elongate elements

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2020-01-02

In-line mud screen manifold

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Drilling component coupler for reinforcement

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2019-12-19

Hydraulically actuated safety sub

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2019-12-19

Threaded connection for oil well

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2019-12-19

Tubular string with load transmitting coupling

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THREADED CONNECTION OF CASING PIPES

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Automated end fitting installation system and method

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High tensile strength winder connection for downhole tools

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Clamp-on single joint manipulator for use with single joint elevator

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2019-11-28

SUCKER RODS

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2019-11-21

Horizontal directional drill string having dual fluid paths

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Threaded connection for steel pipe

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Premium threaded connection and method for making same

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2019-11-07

Integral Tubular Member and Methods of Manufacturing Same

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Threaded connection for steel pipe

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2019-10-31

Wedge thread connection for tubular goods

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2019-10-17

Apparatus for connecting wellsite tubing

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2019-10-17

MULTI-PIECE ROD GUIDE FOR WELLS

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2019-10-10

Autonomous connection evaluation and automated shoulder detection for tubular makeup

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2019-10-03

Isolation barrier