ClassID:

135301

E21B17/042 - page 2 - 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

Recent Application in this class:
#301
20190301264
2019-10-03

Isolation barrier

#302
20190301250
2019-10-03

Oil well casing centralizing standoff connector and adaptor

#303
20190301248
2019-10-03

Drill string components resistant to jamming

#304
20190301247
2019-10-03

Two-part bit wiring assembly

#305
20190284884
2019-09-19

Rod or tube lifting apparatus

#306
20190271418
2019-09-05

Thread form and threaded article

#307
20190249500
2019-08-15

Flexible coupling for downhole drive string

#308
20190242198
2019-08-08

System and method for threaded riser auxiliary lines

#309
20190242197
2019-08-08

Low friction and high wear resistant sucker rod string

#310
20190234177
2019-08-01

Downhole Tool System and Method

#311
20190234154
2019-08-01

Threaded joint for oil and gas pipes

#312
20190226286
2019-07-25

Directional drill securing device and method

#313
20190218867
2019-07-18

Power tong positioner

#314
20190211952
2019-07-11

Threaded connection with void

#315
20190211655
2019-07-11

Box by pin perforating gun system and methods

#316
20190211631
2019-07-11

Threaded joint for oil country tubular goods

#317
20190203857
2019-07-04

Threaded connection

#318
20190203543
2019-07-04

Systems and methods for releasing a portion of a drill string from a drilled cable

#319
20190195030
2019-06-27

Wedge threadform having crest to root thread compound relief areas

#320
20190195029
2019-06-27

Threadform having crest to root thread compound relief areas

#321
20190186209
2019-06-20

Pipe joint having coupled adapter

#322
20190169983
2019-06-06

Subsea isolation sleeve system

#323
20190162031
2019-05-30

System and method for making a threaded connection

#324
20190153787
2019-05-23

Piping body having an RFID tag

#325
20190145245
2019-05-16

Removable modular control assembly

#326
20190144985
2019-05-16

Multilayered corrosion and anti-galling coating for threads and wearable materials

#327
20190136630
2019-05-09

Dual member pipe joint for a dual member drill string

#328
20190128075
2019-05-02

Oil country tubular goods casing coupling

#329
20190119993
2019-04-25

APPARATUS FOR AXIALLY DISPLACING AND TENSIONING A STRING OF PRODUCTION TUBING IN A WELL BORE

#330
20190119992
2019-04-25

RELEASE ASSEMBLY FOR PERCUSSION DRILL TOOLS

#331
20190119990
2019-04-25

Wired pipe and method for making

#332
20190112911
2019-04-18

Downhole corrosion, erosion, scale and deposit monitoring system

#333
20190106967
2019-04-11

Screen filter assembly and method therefor

#334
20190093799
2019-03-28

Threaded Connection for Steel Pipe

#335
20190085884
2019-03-21

Method for creating a high tensile strength joint for connecting rods and fittings

#336
20190085663
2019-03-21

In-line mud screen manifold useful in downhole applications

#337
20190078402
2019-03-14

SYSTEMS AND METHODS FOR DETERMINING CONNECTION INTEGRITY BETWEEN TUBULARS

#338
20190078398
2019-03-14

Threaded connections and downhole tools incorporating the same

#339
20190072215
2019-03-07

ROTARY SHOULDER CONNECTIONS FOR THREADED PIPE CONNECTIONS

#340
20190071935
2019-03-07

Methods and systems for reducing drag and friction during drilling

#341
20190071934
2019-03-07

ROTARY SHOULDER CONNECTIONS FOR THREADED PIPE CONNECTIONS

#342
20190056055
2019-02-21

Corrosion protection element for downhole connections

#343
20190056049
2019-02-21

Threaded joint for oil well tubing

#344
20190056045
2019-02-21

SPIRAL BANDING

#345
20190032821
2019-01-31

PIPE COUPLING

#346
20190032423
2019-01-31

Inductive coupling

#347
20190024462
2019-01-24

Inductive coupling

#348
20190024461
2019-01-24

Thru-casing section mill

#349
20190017634
2019-01-17

Tubular coupling

#350
20190010767
2019-01-10

Threaded connection for pipe or tube and method for producing the threaded connection for pipe or tube

#351
20180371878
2018-12-27

Alternate flow paths for single trip multi-zone systems

#352
20180363387
2018-12-20

NEAR-SQUARE MODIFIED BUTTRESS THREAD FORM ENABLING RUN-IN AND RUN-OUT THREADS

#353
20180356014
2018-12-13

Compression resistant threaded connection

#354
20180355688
2018-12-13

Actuation devices for well tools

#355
20180347292
2018-12-06

Drill rod clamping system and methods of using same

#356
20180347289
2018-12-06

Downhole expandable tubular members with sealed releasable connection

#357
20180340380
2018-11-29

LOCAL ELECTRIC POWER GENERATION FOR TONG CONTROL SYSTEM

#358
20180339355
2018-11-29

Method of Hardbanding Drill String Components and Related Drill String Components Thereof

#359
20180334892
2018-11-22

SINKER BAR

#360
20180334881
2018-11-22

Pressure perforated well casing collar and method of use

#361
20180327633
2018-11-15

Composition for solid coating formation and tubular threaded joint

#362
20180320457
2018-11-08

Directional drill vice and method

#363
20180320456
2018-11-08

Balanced Thread Form, Tubulars Employing the Same, and Methods Relating Thereto

#364
20180320455
2018-11-08

WELLSITE CASING WITH INTEGRATED COUPLING AND METHOD OF MAKING SAME

#365
20180320454
2018-11-08

Method and apparatus for deploying wellbore pump on coiled tubing

#366
20180320452
2018-11-08

One piece forged fluidic displacement drill pipe and method of manufacture thereof

#367
20180313211
2018-11-01

Downhole telemetry system and method therefor

#368
20180313168
2018-11-01

Threaded connection for steel pipe

#369
20180313167
2018-11-01

Systems And Methods For Threadably Connecting An Object With A Cylinder

#370
20180313166
2018-11-01

Coupling for high strength riser with mechanically attached support members with load shoulders

#371
20180291692
2018-10-11

Drill rod having internally projecting portions

#372
20180274341
2018-09-27

PRESSURE PERFORATED WELL CASING SYSTEMS

#373
20180266593
2018-09-20

THREADED PIPE JOINT

#374
20180266190
2018-09-20

Couplings for well pumping components

#375
20180266189
2018-09-20

Reduced drag casing connection

#376
20180259100
2018-09-13

Tubular coupling

#377
20180259099
2018-09-13

Premium threaded connection and method for making same

#378
20180259098
2018-09-13

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

#379
20180258718
2018-09-13

Power tong

#380
20180252343
2018-09-06

TORQUE SHOULDER OF A PREMIUM CONNECTION

#381
20180252342
2018-09-06

Torque shoulder of a premium connection

#382
20180252054
2018-09-06

Alignment sub with deformable sleeve

#383
20180252052
2018-09-06

Connection device

#384
20180252051
2018-09-06

WIRE ROPE SEGMENT FOR DAMPING TRANSMISSION OF CYCLIC FORCES TO A DOWNHOLE PUMP, AND A SYSTEM FOR PUMPING OIL FROM A WELL USING A WIRE ROPE SEGMENT

#385
20180245416
2018-08-30

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

#386
20180238135
2018-08-23

WELLBORE CASING REPAIR SAFETY TOOL FOR LOW-PRESSURE HYDROCARBON WELLS

#387
20180238119
2018-08-23

Transmission assembly for downhole motor

#388
20180231161
2018-08-16

Flexible pipe joint

#389
20180224029
2018-08-09

Autonomous connection evaluation and automated shoulder detection for tubular makeup

#390
20180223636
2018-08-09

Screen filter assembly and method therefor

#391
20180223610
2018-08-09

Apparatus and method of connecting tubulars

#392
20180223609
2018-08-09

Apparatus and method of connecting tubulars

#393
20180223606
2018-08-09

Threaded tubular connection

#394
20180223604
2018-08-09

Modular tubular product for well applications

#395
20180216457
2018-08-02

Measuring while drilling systems, method and apparatus

#396
20180216424
2018-08-02

Joint recognition system

#397
20180216423
2018-08-02

Tubular rotation detection system and method

#398
20180216420
2018-08-02

Drill string components having multiple-thread joints

#399
20180216416
2018-08-02

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

#400
20180216415
2018-08-02

COMPLIANT MODULE CONNECTIONS

#401
20180209238
2018-07-26

Cut to release packer extension

#402
20180209227
2018-07-26

Directional drill stem rod loader and method

#403
20180209222
2018-07-26

Double wall pipe connection system

#404
20180187529
2018-07-05

Expanding well tubulars interconnected by pin-box assemblies optimized for expansion

#405
20180187507
2018-07-05

Offset flange and angled shim flowline fittings

#406
20180187496
2018-07-05

Drill pipe

#407
20180179828
2018-06-28

OIL AND GAS WELL DRILL PIPE ELECTRICAL AND COMMUNICATION ASSEMBLY

#408
20180172197
2018-06-21

THREADED TUBULAR ELEMENT PROVIDED WITH A METALLIC ANTI-CORROSION AND ANTI-GALLING COATING

#409
20180171740
2018-06-21

Dual Bore Swell Packer

#410
20180171725
2018-06-21

Orientation system and method

#411
20180171724
2018-06-21

Running tool lock mechanism

#412
20180171261
2018-06-21

Threaded tubular connection provided with a metallic coating on the threading and on the sealing surface

#413
20180163904
2018-06-14

High pressure flowline union

#414
20180163485
2018-06-14

Pump rod connection

#415
20180161909
2018-06-14

Work string tubing connection restoration

#416
20180148985
2018-05-31

Horizontal directional drill pipe drive connection with locking feature

#417
20180148984
2018-05-31

Electromagnetic telemetry gap sub assembly with insulating collar

#418
20180135792
2018-05-17

Universal thread protector

#419
20180135782
2018-05-17

Drill rod or adaptor with strengthened spigot coupling

#420
20180135389
2018-05-17

Switch sub with two way sealing features and method

#421
20180128066
2018-05-10

ROTATING ASSEMBLY FOR ALIGNMENT OF STRING TOOLS

#422
20180119852
2018-05-03

Expanding well tubulars interconnected by pin-box assemblies optimized for expansion

#423
20180112499
2018-04-26

Flushing filter

#424
20180106399
2018-04-19

Stress reducing thread form

#425
20180106116
2018-04-19

Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling

#426
20180106115
2018-04-19

Connector for steel catenary risers

#427
20180106114
2018-04-19

Rotary shouldered tool joint with non-rotating connection means

#428
20180087344
2018-03-29

MULTI-SECTIONAL SWELLABLE PACKER

#429
20180087330
2018-03-29

Quick connect system for setting tool

#430
20180086012
2018-03-29

Fastening devices for landing string buoyancy and other solutions

#431
20180058152
2018-03-01

Sealed pipe joint

#432
20180051835
2018-02-22

Threaded connection

#433
20180051525
2018-02-22

Dual member pipe joint for a dual member drill string

#434
20180044998
2018-02-15

Drill string components resistant to jamming

#435
20180038186
2018-02-08

Tubing hanger system, and method of tensioning production tubing in a wellbore

#436
20180038171
2018-02-08

Alignable Connector

#437
20180031170
2018-02-01

Separable threaded connection with asymmetric coating

#438
20180023611
2018-01-25

Thread profiles for rotary shouldered connections

#439
20180016854
2018-01-18

Power tong positioner

#440
20180010449
2018-01-11

Casing coupling having communication unit for evaluating downhole conditions

#441
20180010402
2018-01-11

Threaded joint for coupling rods

#442
20180006395
2018-01-04

Wired pipe coupler connector

#443
20170370166
2017-12-28

Pipe wrench

#444
20170370165
2017-12-28

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

#445
20170370163
2017-12-28

Tapered spline connection for drill pipe, casing, and tubing

#446
20170370162
2017-12-28

TUBULAR COMPONENT WITH A HELICAL ABUTMENT

#447
20170370161
2017-12-28

System and method for preloading connection using pressure

#448
20170370159
2017-12-28

Connection protector with a flexible gasket for a tubular component

#449
20170362905
2017-12-21

System and method for positioning of tubular members

#450
20170356253
2017-12-14

Active waterway stabilizer

#451
20170356252
2017-12-14

Sucker rod shear couplers

#452
20170356249
2017-12-14

Passively induced forced vibration rock drilling system

#453
20170350200
2017-12-07

Spinner tool with control valve

#454
20170350199
2017-12-07

Thread form for connector collar of offshore well riser pipe

#455
20170350197
2017-12-07

Inductive coupling

#456
20170342785
2017-11-30

Modular spinner roller

#457
20170335666
2017-11-23

Combined casing fill-up and drill pipe flowback tool and method

#458
20170335630
2017-11-23

Fixed cutter drill bit having core receptacle with concave core cutter

#459
20170328414
2017-11-16

Connection for transmitting torque and axial forces

#460
20170328140
2017-11-16

Torque connector systems, apparatus, and methods

#461
20170328139
2017-11-16

Anti-rotation device for connector assembly and method

#462
20170328137
2017-11-16

Downhole drilling tools and connection system for same

#463
20170321826
2017-11-09

SINGLE LEAD WEDGETHREAD CONNECTION

#464
20170321502
2017-11-09

USE OF ACOUSTIC EMISSION TECHNOLOGY IN OILFIELD TUBULAR MAKE UPS

#465
20170321496
2017-11-09

DRILL STRING ROD WITH GUIDANCE SHOULDER

#466
20170321494
2017-11-09

Connection and protective ring therefor

#467
20170314596
2017-11-02

Threaded and coupled tubular goods connection

#468
20170314373
2017-11-02

Box by Pin Perforating Gun System and Methods

#469
20170314350
2017-11-02

Apparatus for rotating and clamping a tubular

#470
20170314349
2017-11-02

TOP DRIVE POWERED DIFFERENTIAL SPEED ROTATION SYSTEM AND METHOD

#471
20170314344
2017-11-02

Threaded connection management system and method

#472
20170314337
2017-11-02

Tapered thread configuration with improved durability

#473
20170314336
2017-11-02

Enhanced union connection

#474
20170307114
2017-10-26

Joint structure for steel pipes and method of manufacturing the same

#475
20170306705
2017-10-26

Piping body having an RFID tag

#476
20170298698
2017-10-19

Multipurpose double abutment sealed connection

#477
20170292638
2017-10-12

Threaded joint for steel pipes

#478
20170291787
2017-10-12

METHOD AND APPARATUS FOR COILING A CONTINUOUS ROD

#479
20170268298
2017-09-21

Interlock pipe connection

#480
20170254448
2017-09-07

Tubular coupling

#481
20170254178
2017-09-07

Dual coiled tubing head

#482
20170254156
2017-09-07

Tubular component connection protector

#483
20170247970
2017-08-31

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

#484
20170241216
2017-08-24

Method of manufacturing a side pocket mandrel body

#485
20170234100
2017-08-17

Methods and apparatus for use in oil and gas well completion

#486
20170234093
2017-08-17

Downhole fishing tool

#487
20170234087
2017-08-17

Bit change mechanism for a drill rig

#488
20170226843
2017-08-10

Downhole corrosion, erosion, scale and deposit monitoring system

#489
20170226819
2017-08-10

Downhole well tools and methods of using such

#490
20170218734
2017-08-03

Downhole completion system

#491
20170211363
2017-07-27

Box by pin perforating gun system and methods

#492
20170211344
2017-07-27

METHOD FOR OPERATING A TONGS SYSTEM FOR USE ON A RIG AND CORRESPONDING TONGS SYSTEM, COMPUTER PROGRAM FOR IMPLEMENTING THE METHOD AND RIG COMPRISING A TONGS SYSTEM

#493
20170211343
2017-07-27

Compensated top drive unit and elevator links

#494
20170209889
2017-07-27

System for applying pipe dope to external threads of a pipe

#495
20170204681
2017-07-20

Drill string adapter and method for inground signal coupling

#496
20170204680
2017-07-20

Low profile, pressure balanced, oil expansion compensated downhole electrical connector system

#497
20170204678
2017-07-20

Drill rod having internally projecting portions

#498
20170198840
2017-07-13

A JOINT BOX OF FLEXIBLE LONG-LENGTH TUBES

#499
20170198839
2017-07-13

Connecting oil country tubular goods

#500
20170198535
2017-07-13

Method for putting together a down-the-hole drilling apparatus for plastic pipe drilling and a down-the-hole drilling apparatus

#501
20170191351
2017-07-06

GRAVEL PACK JOINT

#502
20170191320
2017-07-06

Drill rod having internally projecting portions

#503
20170175459
2017-06-22

Mechanical connector of long torsional and bending fatigue life

#504
20170175458
2017-06-22

Sucker rod

#505
20170175451
2017-06-22

HOLE OPENER AND METHOD FOR DRILLING

#506
20170167642
2017-06-15

Tubular coupling

#507
20170167208
2017-06-15

Semiautomated drill rod handling apparatus and method, hand-held haul plug spinner and haul plug combination and drill rod handling system with both

#508
20170167204
2017-06-15

Systems and methods for releasing a portion of a drill string from a drilling cable

#509
20170159859
2017-06-08

PIPE COUPLING WITH LOAD DEFLECTING REGION

#510
20170159853
2017-06-08

Threaded connection

#511
20170159381
2017-06-08

Proximity detection between tubulars for blind stabbing

#512
20170146160
2017-05-25

Tubular connection and associated threadform

#513
20170145761
2017-05-25

Wired pipe auto-stabbing guide

#514
20170145757
2017-05-25

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

#515
20170138526
2017-05-18

THREADED CONNECTION FOR OIL COUNTRY TUBULAR GOODS AND COMPOSITION FOR PHOTOCURABLE COATING

#516
20170138139
2017-05-18

Watermelon mill with replaceable cutting structure

#517
20170138132
2017-05-18

Casing Coupler Mounted EM Transducers

#518
20170130843
2017-05-11

Gap-Sub and Measurement While Drilling Assemblies Using Kerros Ringed Gasket Spacers

#519
20170122054
2017-05-04

DRILL WASH DEVICE WITH PRE-MOUNTED EXCHANGE INSERT

#520
20170122041
2017-05-04

System and method for reducing rig noise transmitted downhole

#521
20170114942
2017-04-27

Coupling assembly and protective ring therefor

#522
20170114598
2017-04-27

WELL TUBING DRAIN TOOL ADAPTED FOR USE WITH POWER TONGS AND METHOD OF USING SAME

#523
20170108151
2017-04-20

Threaded joint for steel pipes

#524
20170089183
2017-03-30

Sand control screen

#525
20170074450
2017-03-16

Joint assembly for forming a duct

#526
20170074077
2017-03-16

Over-coupling screen communication system

#527
20170074058
2017-03-16

Apparatus and methods for setting slips on a tubular member

#528
20170074051
2017-03-16

Multi-lead quick connect threaded connection

#529
20170074050
2017-03-16

Multi-start thread connection for downhole tools

#530
20170067582
2017-03-09

Method of manufacturing a pipe segment

#531
20170067297
2017-03-09

Tapered spline connection for drill pipe, casing, and tubing

#532
20170059063
2017-03-02

Threaded joint

#533
20170051579
2017-02-23

Drill bit with electrical power generator

#534
20170044853
2017-02-16

Jig for coupling or uncoupling drill string sections with detachable couplings and related methods

#535
20170044842
2017-02-16

Drill string sections with interchangeable couplings

#536
20170044839
2017-02-16

Gap assembly for EM data telemetry

#537
20170037689
2017-02-09

Self-adjusting pipe spinner

#538
20170030146
2017-02-02

Rotatively mounting cutters on a drill bit

#539
20170022768
2017-01-26

Method and system for servicing a well

#540
20170016285
2017-01-19

Compensating bails

#541
20170009535
2017-01-12

Threaded connection having high galling resistance and method of making same

#542
20160376850
2016-12-29

Threaded connection with high bend and torque capacities

#543
20160376849
2016-12-29

ELECTRICAL CONNECTIVITY ACROSS A TOOL JOINT

#544
20160369574
2016-12-22

Sinker bar

#545
20160365667
2016-12-15

Wired pipe coupler connector

#546
20160362949
2016-12-15

Top drive pipe spinner

#547
20160362944
2016-12-15

SMOOTH BORE COLLAR

#548
20160356110
2016-12-08

Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification

#549
20160356105
2016-12-08

Horizontal pipe connection and length detection system

#550
20160341255
2016-11-24

Universal joint

#551
20160341032
2016-11-24

Wide bandwidth drill pipe structure for acoustic telemetry

#552
20160340982
2016-11-24

Pipe joint having coupled adapter

#553
20160334033
2016-11-17

Threaded joint for tube

#554
20160333650
2016-11-17

Power tongs testing system

#555
20160326815
2016-11-10

Methods of using oilfield lift caps and combination tools

#556
20160319966
2016-11-03

Threaded joint for heavy-walled oil country tubular goods

#557
20160312931
2016-10-27

Assembly for producing a threaded connection for drilling and operating hydrocarbon wells, and resulting threaded connection

#558
20160305585
2016-10-20

Threaded joint for steel pipes

#559
20160305224
2016-10-20

Gravel packing apparatus having locking jumper tubes

#560
20160298400
2016-10-13

Pipe connector

#561
20160290086
2016-10-06

Electromagnetically activated jarring

#562
20160281441
2016-09-29

Tubular connection center shoulder seal

#563
20160281440
2016-09-29

Threaded joint for steel pipes

#564
20160258227
2016-09-08

Casing joint assembly

#565
20160245433
2016-08-25

Threaded connection for pipes, such as oil and gas pipes

#566
20160244883
2016-08-25

Abutment for a tubular component overlaid with a metallic composite deposit and method for making it

#567
20160237764
2016-08-18

Downhole hole cleaning joints and method of using same

#568
20160230909
2016-08-11

Superhigh torsional strength, metallic and airtight drillrod coupler

#569
20160230485
2016-08-11

Drill rod for percussion drill tool

#570
20160222747
2016-08-04

Casing hanger assembly

#571
20160222740
2016-08-04

Pipe connector

#572
20160222737
2016-08-04

Energy transmission efficient drill string coupling

#573
20160215572
2016-07-28

Drill string with bend resistant coupling

#574
20160215571
2016-07-28

Balanced thread form, tubulars employing the same, and methods relating thereto

#575
20160215570
2016-07-28

Jumper Connection for Shunt Tubes on Wellscreen Assembly

#576
20160208962
2016-07-21

Threaded connection for steel pipe

#577
20160208562
2016-07-21

Connecting element for a tubular component overlaid with a metallic composite deposit and method of obtaining such element

#578
20160208561
2016-07-21

Drill string component

#579
20160208194
2016-07-21

Lubricant film-forming composition and screw joint for steel pipe

#580
20160201404
2016-07-14

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

#581
20160195203
2016-07-07

Pipe coupling

#582
20160186332
2016-06-30

Pipe connector and method

#583
20160178095
2016-06-23

Threaded joint for oil country tubular goods

#584
20160177635
2016-06-23

Coupling mounted spin-through rod centralizer

#585
20160168971
2016-06-16

Active external casing packer (ECP) for frac operations in oil and gas wells

#586
20160167319
2016-06-16

Thread Manufacture for Filament Wound Mandrel

#587
20160161031
2016-06-09

Assembly for producing a threaded connection for drilling and operating hydrocarbon wells, and resulting threaded connection

#588
20160161030
2016-06-09

Connection structure between pipe body and joint of aluminum alloy drill pipe

#589
20160160574
2016-06-09

Connection structure between pipe body and joint of aluminum alloy drill pipe

#590
20160146381
2016-05-26

Assembly for producing a threaded connection for drilling and operating hydrocarbon wells, and method for producing such a threaded connection

#591
20160145959
2016-05-26

Flow restricted impact jar

#592
20160138348
2016-05-19

Thread compensation apparatus

#593
20160130885
2016-05-12

Connection structure between pipe body and steel joint of aluminum alloy drill pipe

#594
20160130884
2016-05-12

Threaded joint for oil country tubular goods

#595
20160123509
2016-05-05

Threaded connection

#596
20160123508
2016-05-05

Threaded connection

#597
20160123091
2016-05-05

Threaded joint for oil country tubular goods

#598
20160102505
2016-04-14

Downhole tool connection assembly and method

#599
20160097478
2016-04-07

Pipe element having a composite pipe and a metal connector

#600
20160097473
2016-04-07

Metal pipe having a connector