ClassID:

135312

E21B17/085 - CPC Classification

Classification description:

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings Cables; ; Tubings; Couplings; joints; Casing joints Riser connections

Recent Application in this class:
#1
20260146505
2026-05-28

Rapid Separation Conduit

#2
20260132691
2026-05-14

ROBOT END EFFECTOR FOR SPINNING AND TORQUING BOLTS IN RISER FLANGE

#3
20250137358
2025-05-01

CORROSION RESISTANT SYSTEM FOR PIPE CONNECTIONS

#4
20240344407
2024-10-17

OFFSHORE DRILLING APPARATUS AND METHODS

#5
20240309714
2024-09-19

ROBOTIC SYSTEM FOR MAKING OR BREAKING A RISER

#6
20240254842
2024-08-01

Hands-free gooseneck and hands-free gooseneck flow spool

#7
20240229577
2024-07-11

OFF SHORE RIGID STEEL RISER TERMINATION AND FIXATION SYSTEM TO FLOATING PRODUCTION STORAGE OFFLOADING (FPSO) VESSEL

#8
20240200412
2024-06-20

Control/Monitoring of Internal Equipment in a Riser Assembly

#9
20240183242
2024-06-06

WELLHEAD ATTACHMENT SYSTEM

#10
20240117914
2024-04-11

CONNECTOR FOR SUBSEA PIPELINES AND RISERS, AND REPAIR OF A PIPELINE OR RISER UTILIZING THE CONNECTOR

#11
20240044218
2024-02-08

Control/monitoring of initial construction of subsea wells

#12
20240003203
2024-01-04

Robotic system for making or breaking a riser

#13
20230399900
2023-12-14

Riser bolt torque system

#14
20230265723
2023-08-24

Connection assembly

#15
20230243253
2023-08-03

METHOD OF MONITORING THE LOADING OF A SUBSEA PRODUCTION SYSTEM

#16
20230123839
2023-04-20

Emergency disconnect system

#17
20230085283
2023-03-16

Double-layer coiled tubing double-gradient drilling system

#18
20230072336
2023-03-09

Robotic system for making or breaking a riser

#19
20230069463
2023-03-02

Riser collet connector systems and methods

#20
20230062766
2023-03-02

Engineered weak point for riser systems

#21
20230036833
2023-02-02

Control/Monitoring of Internal Equipment in a Riser Assembly

#22
20230031939
2023-02-02

Drilling riser connector

#23
20220403707
2022-12-22

System and method for connecting a termination body to a portion of a riser

#24
20220372828
2022-11-24

Wellhead connecting assembly

#25
20220364422
2022-11-17

Riser bolt torque system

#26
20220290503
2022-09-15

Riser running tool with liquid fill and test

#27
20220205335
2022-06-30

Apparatus and method relating to managed pressure drilling

#28
20220195811
2022-06-23

Rotating and reciprocating swivel apparatus and method

#29
20220098939
2022-03-31

Robotic system for making or breaking a riser

#30
20220098935
2022-03-31

Connection system for a marine drilling riser

#31
20220082006
2022-03-17

High pressure jumper manifold

#32
20220081977
2022-03-17

Installing subsea risers

#33
20220056771
2022-02-24

Systems and methods for sensing engagement in hazardous rated environments

#34
20220025719
2022-01-27

Torque wrench system having multiple torque stations

#35
20210355766
2021-11-18

Riser tools and methods

#36
20210348703
2021-11-11

Connection

#37
20210348449
2021-11-11

System for coupling between a bend stiffener and a bell mouth comprising a plurality of locking mechanisms

#38
20210246755
2021-08-12

Static annular sealing systems and integrated managed pressure drilling riser joints for harsh environments

#39
20210222544
2021-07-22

LIQUID FILLING AND TESTING OF MARINE DRILLING RISER

#40
20210180413
2021-06-17

Connector for a drilling or production system

#41
20210114151
2021-04-22

Multiplex bolting tool

#42
20210108469
2021-04-15

RISER RUNNING TOOL WITH AUTOMATED ALIGNMENT AND LOAD COMPENSATION

#43
20210108467
2021-04-15

Riser running tool with liquid fill and test

#44
20210079753
2021-03-18

Emergency disconnect system

#45
20200392813
2020-12-17

Cooling fluid circulation systems for offshore production operations

#46
20200386058
2020-12-10

Coupling system between a riser and an underwater supporting structure

#47
20200332616
2020-10-22

Deepwater riser intervention system

#48
20200309292
2020-10-01

System and method for auxiliary line connections

#49
20200300046
2020-09-24

Rotating and reciprocating swivel apparatus and method

#50
20200284102
2020-09-10

Splittable riser component

#51
20200270953
2020-08-27

Apparatus for connecting drilling components between rig and riser

#52
20200240220
2020-07-30

Control/monitoring of internal equipment in a riser assembly

#53
20200224506
2020-07-16

Torque wrench system having multiple torque stations

#54
20200182002
2020-06-11

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

#55
20200173239
2020-06-04

Connector for assembling two riser sections with internal locking ring

#56
20200158267
2020-05-21

End fitting for a composite pipe

#57
20200096150
2020-03-26

Flexible pipe connector suitable for effecting control and forced circulation of anticorrosive fluids through the annulus of the flexible pipe

#58
20200063528
2020-02-27

Apparatus and methods for inspecting and cleaning subsea flex joints

#59
20200063505
2020-02-27

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

#60
20200003015
2020-01-02

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

#61
20190390794
2019-12-26

Clamping device for flexible pipe for subsea applications, and related method

#62
20190376859
2019-12-12

Variable reluctance measurement technology for drilling risers and riser towers

#63
20190360294
2019-11-28

Completion interface systems for use with surface BOPS

#64
20190330954
2019-10-31

WEAR INDICATOR FOR A JOINT BETWEEN A RISER AND A FLOATING PLATFORM

#65
20190330934
2019-10-31

Motion compensating floor system and method

#66
20190264850
2019-08-29

Flexible pipe joint having an annular flexible boot thermally or chemically insulating an annular elastomeric flexible element

#67
20190247945
2019-08-15

Method for connecting two individual elements of an underwater fluid-transport pipe subject to fatigue

#68
20190242198
2019-08-08

System and method for threaded riser auxiliary lines

#69
20190234159
2019-08-01

RISER MONITORING AND LIFECYCLE MANAGEMENT SYSTEM AND METHOD

#70
20190218865
2019-07-18

Apparatus for transmitting torque through a work string

#71
20190195032
2019-06-27

RISER GAS HANDLING SYSTEM AND METHOD OF USE

#72
20190186258
2019-06-20

RISER JOINT SYSTEM, WELL DRILLING SYSTEM AND METHOD FOR WELL DRILLING SYSTEM

#73
20190178412
2019-06-13

Axially restricted pressure shuttle

#74
20190136642
2019-05-09

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

#75
20190063164
2019-02-28

Stress reducing system and associated method

#76
20190024474
2019-01-24

Latch assembly using on-board miniature hydraulics for RCD applications

#77
20180363455
2018-12-20

Rotating control device with communications module

#78
20180363390
2018-12-20

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

#79
20180355676
2018-12-13

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

#80
20180320458
2018-11-08

Splittable riser component

#81
20180313170
2018-11-01

Rotating and reciprocating swivel apparatus and method

#82
20180313166
2018-11-01

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

#83
20180298698
2018-10-18

Collet connector systems and methods

#84
20180274310
2018-09-27

Torque wrench system having multiple torque stations

#85
20180252055
2018-09-06

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

#86
20180245416
2018-08-30

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

#87
20180231158
2018-08-16

Gasket with multiple seal rings

#88
20180148986
2018-05-31

Method and apparatus for elevating the tapered stress joint or flex joint of an SCR above the water

#89
20180106115
2018-04-19

Connector for steel catenary risers

#90
20180080287
2018-03-22

Threaded pipe joint

#91
20180051523
2018-02-22

High pressure marine drilling riser assembled using mechanical components

#92
20180002988
2018-01-04

Riser system

#93
20170350199
2017-12-07

Thread form for connector collar of offshore well riser pipe

#94
20170350196
2017-12-07

Anchoring subsea flexible risers

#95
20170335634
2017-11-23

Marine drilling riser joint

#96
20170298701
2017-10-19

Riser monitoring and lifecycle management system and method

#97
20170298699
2017-10-19

Dynamic riser mechanical connector

#98
20170247955
2017-08-31

Riser top connector

#99
20170241212
2017-08-24

Marine riser section for subsea wellbore related operations

#100
20170183924
2017-06-29

System and method for installing or removing a seal sub from a riser

#101
20170175460
2017-06-22

Tubular connection assembly for improved fatigue performance of metallic risers

#102
20170074426
2017-03-16

Method for connecting a bottom pipe and a riser pipe

#103
20170074063
2017-03-16

Marine riser system

#104
20170074053
2017-03-16

Riser pipe section equipped with an inner locking ring and with a clearance adjustment means between the auxiliary line elements and the main tube elements

#105
20170074052
2017-03-16

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

#106
20170067326
2017-03-09

Method and apparatus for producing hydrocarbons from one subsea well

#107
20170059067
2017-03-02

CLAMP CONNECTOR

#108
20160348819
2016-12-01

Flexible pipe joint having an annular flexible boot thermally or chemically insulating an annular elastomeric flexible element

#109
20160348450
2016-12-01

Rotating and reciprocating swivel apparatus and method

#110
20160327191
2016-11-10

Breech lock coupling

#111
20160298397
2016-10-13

Riser deflection mitigation

#112
20160290108
2016-10-06

Apparatus and method for disconnecting male and female connectors

#113
20160273318
2016-09-22

Subsea test tree intervention package

#114
20160273280
2016-09-22

IMPROVED RISER TENSIONER BEARING SYSTEM

#115
20160258562
2016-09-08

Riser connector assembly

#116
20160230493
2016-08-11

CONNECTOR

#117
20160208563
2016-07-21

Riser joint connection

#118
20160186517
2016-06-30

Subsea support

#119
20160146381
2016-05-26

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

#120
20160138352
2016-05-19

Annular isolation device for managed pressure drilling

#121
20160138345
2016-05-19

Riser system

#122
20160084066
2016-03-24

Riser monitoring system and method

#123
20160084065
2016-03-24

Smart riser handling tool

#124
20160076312
2016-03-17

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

#125
20160069494
2016-03-10

Flexible pipe and method of manufacture of flexible pipe

#126
20160060971
2016-03-03

Connector for risers equipped with an external locking collar

#127
20160053567
2016-02-25

Elevated temperature riser bearing

#128
20160032662
2016-02-04

Drilling riser assemblies

#129
20150368998
2015-12-24

Subsea test tree intervention package

#130
20150322730
2015-11-12

Merlin drilling riser assembly

#131
20150275586
2015-10-01

Riser and an offshore system

#132
20150167398
2015-06-18

Riser with slim pin auxiliary line

#133
20150152698
2015-06-04

Systems and methods for riser coupling

#134
20150152694
2015-06-04

Systems and methods for riser coupling

#135
20150152693
2015-06-04

Systems and methods for riser coupling

#136
20150152692
2015-06-04

Riser clamp

#137
20150152691
2015-06-04

Method and connector assembly for connecting tubular members

#138
20150108723
2015-04-23

DOUBLE METAL TO METAL KX SEAL

#139
20150075804
2015-03-19

Offshore universal riser system

#140
20150068767
2015-03-12

Method and apparatus for connecting tubulars of a wellsite

#141
20150068766
2015-03-12

Apparatus and method for connecting tubulars of a wellsite

#142
20150060082
2015-03-05

Apparatus for improving flanged connections

#143
20150047852
2015-02-19

Installation comprising seabed-to-surface connections of the multi-riser hybrid tower type, including positive-buoyancy flexible pipes

#144
20150027720
2015-01-29

Metal-to-composite interfaces

#145
20140346772
2014-11-27

Elastomeric sleeve-enabled telescopic joint for a marine drilling riser

#146
20140345872
2014-11-27

Laser assisted system for controlling deep water drilling emergency situations

#147
20140338920
2014-11-20

Workover riser compensator system

#148
20140333064
2014-11-13

Riser clamp

#149
20140326502
2014-11-06

Merlin drilling riser assembly

#150
20140311748
2014-10-23

Apparatus and methods for inspecting and cleaning subsea flex joints

#151
20140251631
2014-09-11

Riser breakaway connection and intervention coupling device

#152
20140232109
2014-08-21

Connection assembly

#153
20140231092
2014-08-21

Annular pressure relief system

#154
20140209322
2014-07-31

Torque wrench system having multiple torque stations

#155
20140159361
2014-06-12

Method and apparatus for connecting tubulars of a wellsite

#156
20140151058
2014-06-05

Marine riser with side tension members

#157
20140138096
2014-05-22

Slip joint and method of operating a slip joint

#158
20140090855
2014-04-03

Rotating and reciprocating swivel apparatus and method

#159
20140083711
2014-03-27

Hands free gooseneck with rotating cartridge assemblies

#160
20140083710
2014-03-27

Packer assembly for an offshore riser and method of using same

#161
20140054890
2014-02-27

Elliptical undercut shoulder for specialty pipe connections

#162
20140054887
2014-02-27

Tubular connector having a secondary shoulder

#163
20140044493
2014-02-13

Subsea conduit system

#164
20140041878
2014-02-13

Hybrid riser system

#165
20140020905
2014-01-23

Rotary lock block type drilling riser connector

#166
20130299178
2013-11-14

Systems and methods for riser coupling

#167
20130292132
2013-11-07

Method of forming a machinable surface

#168
20130269946
2013-10-17

Modular stress joint and methods for compensating for forces applied to a subsea riser

#169
20130255956
2013-10-03

Seal sub system

#170
20130249210
2013-09-26

Quick disconnect connector for subsea tubular members

#171
20130234431
2013-09-12

Marine riser assembly

#172
20130207388
2013-08-15

Pipe coupling for a riser for the connection of an oil or gas well to an oil rig

#173
20130161021
2013-06-27

COMPRESSION COUPLING FOR PIPES SUBJECTED TO TENSION LOADS AND ASSOCIATED METHODS

#174
20130140813
2013-06-06

Slide actuating tubular connector

#175
20130087342
2013-04-11

Riser system and method of use

#176
20130076028
2013-03-28

Rotationally actuated collet style tubular connection

#177
20130020087
2013-01-24

Riser section connector with flanges and external locking ring

#178
20120312544
2012-12-13

RISER SYSTEM

#179
20120312543
2012-12-13

Deepwater blow out throttling apparatus and method

#180
20120292107
2012-11-22

Offshore drilling method

#181
20120292106
2012-11-22

Offshore drilling method

#182
20120292054
2012-11-22

Offshore universal riser system

#183
20120292036
2012-11-22

Offshore universal riser system

#184
20120285697
2012-11-15

Offshore universal riser system

#185
20120273218
2012-11-01

Offshore drilling method

#186
20120267118
2012-10-25

Offshore universal riser system

#187
20120267117
2012-10-25

Device for a safety connector for a pipe string suspension

#188
20120227977
2012-09-13

Torque wrench system having multiple torque stations

#189
20120222865
2012-09-06

Drilling riser adapter connection with subsea functionality

#190
20120217017
2012-08-30

Laser assisted system for controlling deep water drilling emergency situations

#191
20120211975
2012-08-23

END FITTING FOR A FLEXIBLE RISER AND METHOD OF ASSEMBLY

#192
20120205118
2012-08-16

Workover riser compensator system

#193
20120193906
2012-08-02

Riser bending relief joint

#194
20120145407
2012-06-14

Method of connecting a flexible riser to an upper riser assembly

#195
20120132433
2012-05-31

Safety joint and riser

#196
20120132432
2012-05-31

Gas handler, riser assembly, and method

#197
20120119490
2012-05-17

Marine riser assembly

#198
20120067589
2012-03-22

Riser emergency disconnect control system

#199
20120037377
2012-02-16

ALUMINUM AUXILIARY LINES FOR DRILLING RISER

#200
20120032434
2012-02-09

Pressure isolation system for flexible pipe joints

#201
20120031622
2012-02-09

Trigger joint

#202
20120006564
2012-01-12

Torque wrench system having multiple torque stations

#203
20110247827
2011-10-13

Dual Drilling Activity Drilling Ship

#204
20110227336
2011-09-22

Pipe coupling arrangement

#205
20110214877
2011-09-08

Actuation assembly for riser connection dog

#206
20110209878
2011-09-01

Method for lightening a riser pipe with optimized wearing part

#207
20110203804
2011-08-25

Riser section connector with flanges, internal locking ring and external locking collar

#208
20110193340
2011-08-11

FLEXIBLE JOINT FOR LARGE-DIAMETER RISER PIPES

#209
20110192611
2011-08-11

Riser joint coupling

#210
20110174495
2011-07-21

Marine drilling riser system

#211
20110155388
2011-06-30

Slip connection with adjustable pre-tensioning

#212
20110127041
2011-06-02

Riser weak link

#213
20110109081
2011-05-12

Drilling riser connector

#214
20110073315
2011-03-31

Riser pipe with rigid auxiliary lines assembled by pins

#215
20110048727
2011-03-03

Force element arrangement and method

#216
20110042095
2011-02-24

Riser clamp

#217
20110037257
2011-02-17

Breech lock coupling

#218
20110017466
2011-01-27

Riser pipe with rigid auxiliary lines and offset connectors

#219
20110012343
2011-01-20

Double-ended flexible pipe joint having stacked co-axial primary and secondary annular elastomeric flex elements

#220
20110005769
2011-01-13

Rotating and reciprocating swivel apparatus and method

#221
20100327532
2010-12-30

Metal-to-metal annulus seal arrangement

#222
20100319925
2010-12-23

Riser pipe section with flanged auxiliary lines and bayonet connections

#223
20100314865
2010-12-16

JOINING METAL PIPES

#224
20100300699
2010-12-02

Riser pipe with adjustable auxiliary lines

#225
20100282474
2010-11-11

Subsea overload release system and method

#226
20100278611
2010-11-04

Apparatus to mechanically load a compression member

#227
20100253076
2010-10-07

Marine riser assembly

#228
20100164223
2010-07-01

Marine drilling riser connector with removable shear elements

#229
20100163239
2010-07-01

Apparatus and methods for inspecting and cleaning subsea flex joints

#230
20100147530
2010-06-17

Bellows type adjustable casing

#231
20100139925
2010-06-10

Connector

#232
20100032214
2010-02-11

Composite enhanced metallic drilling riser system

#233
20100025046
2010-02-04

Torque wrench system having multiple torque stations

#234
20100018715
2010-01-28

Offshore universal riser system

#235
20090308658
2009-12-17

System and method for connecting tubular members

#236
20090304454
2009-12-10

Workover Riser Compensator System

#237
20090279957
2009-11-12

Riser assembly

#238
20090272537
2009-11-05

Aluminum riser assembly

#239
20090260831
2009-10-22

High pressure sleeve for dual bore HP riser

#240
20090212558
2009-08-27

Pressure isolation system for flexible pipe joints

#241
20090212557
2009-08-27

Two-element tandem flexible joint

#242
20090166043
2009-07-02

Riser pipe with rigid auxiliary lines

#243
20090097926
2009-04-16

Connector assembly for an off shore riser

#244
20090050330
2009-02-26

Riser pipe with auxiliary lines mounted on journals

#245
20080264644
2008-10-30

Method and apparatus for connecting drilling riser strings and compositions thereof

#246
20080251257
2008-10-16

Multipart sliding joint for floating rig

#247
20080175672
2008-07-24

Riser with axially offset dog-type connectors

#248
20080149390
2008-06-26

Preloaded riser coupling system

#249
20080139322
2008-06-12

Flexible joint with bellows

#250
20080112763
2008-05-15

Offshore pipe string system and method

#251
20080111375
2008-05-15

Pipe joint

#252
20080105435
2008-05-08

Safety joint

#253
20080105434
2008-05-08

Offshore universal riser system

#254
20080087435
2008-04-17

Diverless connector for bend restrictors and/or bend stiffeners

#255
20070267197
2007-11-22

Rapid makeup drilling riser

#256
20070252387
2007-11-01

Marine riser assembly

#257
20070246219
2007-10-25

SEAL FOR A FLUID ASSEMBLY

#258
20070152441
2007-07-05

Pipe connector and torque tool

#259
20070063507
2007-03-22

System, method, and apparatus for a radially-movable line termination system for a riser string on a drilling rig

#260
20070044975
2007-03-01

Preloaded riser coupling system

#261
20070044974
2007-03-01

Riser make-up tool

#262
20070044973
2007-03-01

Riser joint coupling

#263
20070012451
2007-01-18

Piggable flowline-riser system

#264
20060219411
2006-10-05

High pressure system

#265
20060188342
2006-08-24

Method of manufacturing composite riser

#266
20060157252
2006-07-20

Subsea riser disconnect and method

#267
20050249558
2005-11-10

Composite marine riser

#268
20050206163
2005-09-22

Connector for high-pressure riser

#269
20050196243
2005-09-08

Riser apparatus assembly and method of installing same

#270
20050167978
2005-08-04

High temperature flexible pipe joint

#271
20050166385
2005-08-04

Apparatus to mechanically load a compression member

#272
19083351
2025-12-30

Steel wire pre-embedded integrated full-bore acid fracturing hose assembly and preparation method thereof

#273
18420001
2025-02-11

Offshore platform slot recovery tool system

#274
17860621
2024-01-09

Offshore platform slot recovery tool system

#275
17338548
2022-07-12

Offshore platform slot recovery tool system

#276
16696563
2022-10-04

High pressure and high frequency connector and actuator system therefore

#277
16130263
2019-04-30

Plug and play connection system for a below-tension-ring managed pressure drilling system

#278
15143024
2017-06-20

Drilling riser joint with integrated multiplexer line

#279
14608144
2016-02-09

Heavy duty riser connector assembly