ClassID:

135466

E21B33/0385 - CPC Classification

Classification description:

Sealing or packing boreholes or wells; Surface sealing or packing; Well heads; Setting-up thereof specially adapted for underwater installations; Connectors used on well heads, e.g. for connecting blow-out preventer and riser electrical connectors

Recent Application in this class:
#1
20260117778
2026-04-30

SAFETY CONTROLS FOR ELECTRICAL SUBMERSIBLE PUMP SYSTEMS

#2
20260071511
2026-03-12

HARNESS

#3
20240410246
2024-12-12

WELLHEAD ELECTRICAL FEED-THRU PENETRATOR SEALING, BREAKAWAY APPARATUS AND METHOD OF INSTALLATION

#4
20230265731
2023-08-24

Wellhead electrical feed-thru penetrator sealing, breakaway apparatus and method of installation

#5
20230203910
2023-06-29

METHOD AND SYSTEM FOR DEPLOYING AN ELECTRIC SUBMERSIBLE PUMP IN A LIVE WELL

#6
20230167692
2023-06-01

Method and system for reservoir monitoring using electrical connectors with completion assemblies

#7
20230089515
2023-03-23

Subsea erosion sensor

#8
20220393407
2022-12-08

Subsea connector

#9
20220290521
2022-09-15

Christmas tree and assembly for controlling flow from a completed well

#10
20220268131
2022-08-25

Downhole electric switch

#11
20220170339
2022-06-02

Electrical feedthrough system and methods of use thereof

#12
20220170338
2022-06-02

CROSSOVER FOR A FLOW PATH FOR A FLUID TO A SUBSEA DEVICE

#13
20220154544
2022-05-19

Electrical feedthrough system and methods of use thereof

#14
20220074441
2022-03-10

CONNECTION APPARATUS

#15
20220006252
2022-01-06

Electrical component of a subsea connector and method of manufacture therefore

#16
20210404845
2021-12-30

Subsea housing assembly

#17
20210098151
2021-04-01

High pressure electrical connector cable for oil and gas applications

#18
20210095529
2021-04-01

High pressure dual electrical collet assembly for oil and gas applications

#19
20210062589
2021-03-04

WIRELINE PACKOFF FOR A DOWNHOLE ELECTRICAL TOOL

#20
20210010342
2021-01-14

Self-contained well intervention system and method

#21
20200300055
2020-09-24

AUXILIARY EQUIPMENT PROVISION

#22
20200291736
2020-09-17

Reusable field-attachable wellhead penetrator and method of assembly and use

#23
20200287318
2020-09-10

High voltage subsea connection assembly

#24
20200224510
2020-07-16

Modular vertical wet christmas tree, installation method and intervention method thereof

#25
20200040665
2020-02-06

One-connector penetrator system adaptable to any cables used in artificial lift system

#26
20200025230
2020-01-23

Connection apparatus

#27
20190376359
2019-12-12

HYDROPHOBIC DIELECTRIC SEALING MATERIALS

#28
20190368280
2019-12-05

High tensile strength winder connection for downhole tools

#29
20190360293
2019-11-28

Coiled tubing connector to electrical submersible pump

#30
20190352993
2019-11-21

Connection system for a multi-bore flying lead or umbilical

#31
20190257171
2019-08-22

Ported U-cup annular wellhead hanger seal

#32
20190195028
2019-06-27

Downhole wet connection systems

#33
20190186239
2019-06-20

Umbilical end termination

#34
20190122790
2019-04-25

High voltage electric power feed-through apparatus

#35
20190112888
2019-04-18

Wellhead feed through apparatus for electrical cable and other types of conduit

#36
20190093437
2019-03-28

Axial face seal system

#37
20190085651
2019-03-21

Subsea electric actuator system

#38
20190085644
2019-03-21

Connector assembly

#39
20190040706
2019-02-07

Subsea tree override tool apparatus and method

#40
20190032436
2019-01-31

Systems for retrievable subsea blowout preventer stack modules

#41
20180342829
2018-11-29

Connector Maintenance Panel

#42
20180340970
2018-11-29

In situ pressure balanced oil-filled cable connector integrity monitoring

#43
20180340392
2018-11-29

Connection assembly, sensor assembly and subsea cable harness

#44
20180340391
2018-11-29

System and method for non-invasive power and data transmission

#45
20180335324
2018-11-22

Pressure compensated sensors

#46
20180335323
2018-11-22

Pressure compensated sensors

#47
20180331527
2018-11-15

Connection assembly, sensor assembly and subsea cable harness

#48
20180320506
2018-11-08

Communication through a hanger and wellhead

#49
20180320470
2018-11-08

Power feedthrough system for in-riser equipment

#50
20180274320
2018-09-27

Safety sealing and reparation device and method for electrical cables that pass through wellheads

#51
20180223620
2018-08-09

Subsea flying lead

#52
20180223619
2018-08-09

Subsea system and methodology utilizing production receptacle structure

#53
20180216433
2018-08-02

Sacrificial breakaway mechanism

#54
20180076573
2018-03-15

Method for determining an operational state of a subsea connector unit

#55
20180017416
2018-01-18

Subsea housing assembly

#56
20170350209
2017-12-07

Subsea umbilical termination assembly

#57
20170346215
2017-11-30

Connector maintenance panel

#58
20170247971
2017-08-31

Downhole sealing tool

#59
20170211339
2017-07-27

Orthogonal electrical connector penetrator system for coiled tubing electrical service in a flow-through multi-bowled wellhead and method of installation and use

#60
20170201039
2017-07-13

Subsea electrical connector component

#61
20170187143
2017-06-29

Subsea high voltage connection assembly

#62
20170187142
2017-06-29

Radially and axially-compressed ceramic sealing method and apparatus

#63
20170183935
2017-06-29

Subsea universal Xmas tree hang-off adapter

#64
20170175476
2017-06-22

Modular electrical feedthrough

#65
20170030160
2017-02-02

System and method for non-invasive power and data transmission

#66
20170018336
2017-01-19

Feed-through element for harsh environments

#67
20170016302
2017-01-19

Subsea well assembly and assoicated method

#68
20160359252
2016-12-08

Retention of electrical spring contacts for wet connection of down-hole tool components

#69
20160281453
2016-09-29

Hinged cable termination

#70
20160265697
2016-09-15

Progressive-action sealing system for electrical conductors

#71
20160251926
2016-09-01

Subsea completion apparatus and method including engageable and disengageable connectors

#72
20160246012
2016-08-25

Connector for subsea use

#73
20160239027
2016-08-18

PRESSURE COMPENSATOR AND METHOD OF MANUFACTURING A PRESSURE COMPENSATOR

#74
20160233608
2016-08-11

Flushing arrangement

#75
20160177680
2016-06-23

SUBSEA DIELECTRIC FLUID INJECTION TOOL

#76
20160100497
2016-04-07

Apparatus with wired electrical communication

#77
20160061878
2016-03-03

Method for locating an electrical defect in an underwater electrical distribution modular system

#78
20160055932
2016-02-25

GTMS connector for oil and gas market

#79
20160024869
2016-01-28

COMPLETION WITH SUBSEA FEEDTHROUGH

#80
20160024868
2016-01-28

COMPLETION WITH SUBSEA FEEDTHROUGH

#81
20160003001
2016-01-07

Subsea valve

#82
20160002997
2016-01-07

Electrical submersible pump tree cap

#83
20150308258
2015-10-29

Downhole probes and systems

#84
20150300848
2015-10-22

Method of assembling a subsea sensor

#85
20150285008
2015-10-08

Downhole connector

#86
20150277452
2015-10-01

Pressure compensation system

#87
20150240585
2015-08-27

System for controlling in-riser functions from out-of-riser control system

#88
20150233203
2015-08-20

Multiple channel rotary electrical connector

#89
20150184660
2015-07-02

Methods and systems for subsea boosting with direct current and alternating current power systems

#90
20150171566
2015-06-18

System and method for sub-sea cable termination

#91
20150132065
2015-05-14

Position monitoring for subsea bellow compensators

#92
20150114624
2015-04-30

Method and apparatus for down-hole alignment of optic fibers

#93
20150083487
2015-03-26

GTMS connector for oil and gas market

#94
20150077205
2015-03-19

Subsea transformer

#95
20150047854
2015-02-19

Electrical bulkhead connector

#96
20150041149
2015-02-12

System for coupling MWD tools

#97
20140340852
2014-11-20

Subsea connections

#98
20140339774
2014-11-20

High pressure mechanical seal for cables and power lines in oil wells

#99
20140234029
2014-08-21

Methods and apparatus for recovery of damaged subsea pipeline sections

#100
20140158366
2014-06-12

Subsea completion with a tubing spool connection system

#101
20140112699
2014-04-24

Sub-sea multiple quick connector assembly

#102
20140060855
2014-03-06

Angled-penetrator device and system

#103
20140049399
2014-02-20

Power supply and voltage multiplication for submerged subsea systems based on cathodic protection system

#104
20140020907
2014-01-23

Fixed wet connection system for an electrical submersible pump

#105
20130252482
2013-09-26

Subsea container electrical through connector

#106
20130130529
2013-05-23

Flexible sealing connector

#107
20130065429
2013-03-14

High temperature, high pressure subsea electrical connector system

#108
20130044983
2013-02-21

Subsea electro-optical connector unit for electro-optical ethernet transmission system

#109
20130012045
2013-01-10

ELECTRICAL PENETRATOR ASSEMBLY

#110
20130008669
2013-01-10

System and method for coupling downhole tools

#111
20120279718
2012-11-08

Method for connecting two coupling parts of a subsea coupling arrangement to each other

#112
20120097383
2012-04-26

System and method for inductive signal and power transfer from ROV to in riser tools

#113
20110309687
2011-12-22

Contactless power transfer system

#114
20110306227
2011-12-15

Connector

#115
20110306225
2011-12-15

Connector

#116
20110304135
2011-12-15

Wet-mateable connector

#117
20110290507
2011-12-01

Communication Method and Apparatus for Insert Completions

#118
20110278018
2011-11-17

Electrical coupling apparatus and method

#119
20110266002
2011-11-03

Subsea Control Module with Removable Section

#120
20110265885
2011-11-03

Subsea control module with removable section and method

#121
20110260451
2011-10-27

Barrier seal and assembly incorporating same

#122
20110250774
2011-10-13

High voltage subsea electrical penetrator

#123
20110226369
2011-09-22

Pressure compensator

#124
20110203379
2011-08-25

Pressure compensator

#125
20110181436
2011-07-28

Communications connection in a subsea well

#126
20110147047
2011-06-23

Power umbilical

#127
20110079430
2011-04-07

Rotating control device, cool fluid circulation system and methods of operation

#128
20110034066
2011-02-10

Multiple layer conductor pin for electrical connector and method of manufacture

#129
20110034041
2011-02-10

Electrical penetrator assembly

#130
20110000677
2011-01-06

Subsea test apparatus, assembly and method

#131
20100294481
2010-11-25

Angled-penetrator device and system

#132
20100206630
2010-08-19

High pressure, high voltage penetrator assembly

#133
20100181075
2010-07-22

Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use

#134
20100089126
2010-04-15

Subsea pipeline service skid

#135
20100065302
2010-03-18

ELECTRICAL CONNECTOR WITH PRESSURE SEAL

#136
20100026234
2010-02-04

Power supply apparatus for electronic,electrical, and electromechanical installations

#137
20090288836
2009-11-26

Apparatus and methods for subsea control system testing

#138
20090260833
2009-10-22

Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device

#139
20090255682
2009-10-15

Large bore vertical tree

#140
20090226262
2009-09-10

Electrical power system for a subsea system

#141
20090223674
2009-09-10

Integrated electrical connector for use in a wellhead tree

#142
20080314616
2008-12-25

High pressure, high voltage penetrator assembly for subsea use

#143
20080227341
2008-09-18

Connector assembly for use with an electrical submersible component in a deepwater environment

#144
20080216907
2008-09-11

Hydraulic coupling member with electrical bonding contractor

#145
20080210441
2008-09-04

Method and apparatus for connecting, installing, and retrieving a coiled tubing-conveyed electrical submersible pump

#146
20080166099
2008-07-10

Optical fiber feedthrough using axial seals for bi-directional sealing

#147
20080143100
2008-06-19

Connector and method

#148
20070253158
2007-11-01

Subsea docking system for electronic modules in subsea installations

#149
20070227757
2007-10-04

Sealed eurytopic make-break connector utilizing a conductive elastomer contact

#150
20070137863
2007-06-21

Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device

#151
20060201683
2006-09-14

Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use

#152
20060201682
2006-09-14

Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use

#153
20060201681
2006-09-14

Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use

#154
20060157250
2006-07-20

Sub sea control and monitoring system

#155
20060090898
2006-05-04

Subsea junction plate assembly running tool and method of installation

#156
20060037758
2006-02-23

Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use

#157
20060005971
2006-01-12

Method and apparatus for installing an undersea umbilical

#158
20060005970
2006-01-12

System and method for termination of an undersea umbilical

#159
20050075013
2005-04-07

Subsea well electrical connector

#160
20050051341
2005-03-10

Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device

#161
18932156
2026-04-28

Safety controls for electrical submersible pump systems

#162
18375594
2024-11-05

Wet mate carrier for radial deployment of downhole wet mate connector

#163
17386780
2022-05-03

Method for lightweight subsea blowout preventer umbilicals

#164
17386285
2022-05-31

Method for integrating choke lines, kill lines, and hydraulic control lines into a mandrel