Patents-Review.com
ClassID:

135476 ⎘

E21B33/062 - CPC Classification

Classification description:

Sealing or packing boreholes or wells; Surface sealing or packing; Well heads; Setting-up thereof; Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers; Ram-type blow-out preventers, e.g. with pivoting rams with sliding rams

Sub-classes:
Recent Application in this class:
#1
20250376907
2025-12-11

ELECTRICALLY-ACTUATED BLOW-OUT PREVENTER

 #2
20250356075
2025-11-20

ITERATIVE REDESIGN OF PRESSURE-CONTROL COMPONENT DESIGNS BASED ON A CONDUIT POOL

 #3
20250341144
2025-11-06

SYSTEMS AND METHODS FOR FLUID PRESSURE CONTROL

 #4
20250341143
2025-11-06

BLOWOUT PREVENTER SYSTEMS AND METHODS

 #5
20250334018
2025-10-30

Annular Blow Out Preventer

 #6
20250327367
2025-10-23

BLOWOUT PREVENTER LOCKING SYSTEM AND METHOD

 #7
20250263998
2025-08-21

SIDE DOOR BOLT-FREE RAM BLOWOUT PREVENTER

 #8
20250116167
2025-04-10

Annular Blow Out Preventer

 #9
20250092754
2025-03-20

INTENSIFIER RAM BLOWOUT PREVENTER

 #10
20250012166
2025-01-09

PACKER SYSTEM, AND PROCESS TO SETTLE AND RETRIEVE

 #11
20240384618
2024-11-21

ELECTRICALLY-ACTUATED BLOW-OUT PREVENTER

 #12
20240384617
2024-11-21

DEVICE FOR CONNECTION OR RELEASE OF BOP RAM ACTUATOR

 #13
20240368956
2024-11-07

Modular Head for Well Tubulars

 #14
20240328276
2024-10-03

AUTOMATIC WELL KILLING SYSTEM

 #15
20240271502
2024-08-15

INTEGRATED COMPOSITE SEALS FOR RAM BODY

 #16
20240263534
2024-08-08

BOP PISTON BOOSTER AND BONNETT ASSEMBLY

 #17
20240240536
2024-07-18

INTENSIFIER RAM BLOWOUT PREVENTER

 #18
20240240535
2024-07-18

LOCK SEQUENCING SYSTEM FOR A BLOWOUT PREVENTER

 #19
20240191587
2024-06-13

RISER SYSTEM

 #20
20240110455
2024-04-04

FORGED BOP INTERNAL CAVITY PROFILE FOR WORKOVER RIGS

 #21
20240084663
2024-03-14

REMOTE LOCKING SYSTEM FOR A BLOWOUT PREVENTER

 #22
20240060387
2024-02-22

Packer system, and process to settle and retrieve

 #23
20230203907
2023-06-29

Starter engine system for a rotary lock

 #24
20230203906
2023-06-29

Modular head for well tubulars

 #25
20230131856
2023-04-27

Annular pressure control ram diverter

 #26
20230032825
2023-02-02

Method for retaining blowout preventer actuator bodies

 #27
20230030422
2023-02-02

Method for controlling pressure in blowout preventer ram seals

 #28
20220372830
2022-11-24

INTEGRATED COMPOSITE SEALS FOR RAM BODY

 #29
20220325596
2022-10-13

Rod lock out clamp

 #30
20220307339
2022-09-29

High velocity and pressure BOP ram seal, ram body, and ram seal assembly

 #31
20220275697
2022-09-01

Piston and gate assembly for kinetic pressure control apparatus ram

 #32
20220228455
2022-07-21

System and method for actuating a locking assembly

 #33
20220195848
2022-06-23

Alternative energy battery charging systems for well construction

 #34
20220136356
2022-05-05

Remote locking system for a blowout preventer

 #35
20220090462
2022-03-24

Annular Pressure Control Ram Diverter

 #36
20220049567
2022-02-17

BOP stump test apparatus

 #37
20220010646
2022-01-13

Variable blowout preventer apparatus and method

 #38
20220003112
2022-01-06

Methods for assessing the reliability of hydraulically-actuated devices and related systems

 #39
20210381332
2021-12-09

Rotational drive system for a blowout preventer

 #40
20210372222
2021-12-02

Rotating control device system with rams

 #41
20210355800
2021-11-18

Frac stack well intervention

 #42
20210317737
2021-10-14

Methods for assessing the reliability of hydraulically-actuated devices and related systems

 #43
20210301619
2021-09-30

Blowout preventer testing apparatus and method

 #44
20210277739
2021-09-09

Blowout preventer with dual function rams

 #45
20210262311
2021-08-26

Kinetic ram having pressure relief device

 #46
20210238944
2021-08-05

Modular head for well tubulars

 #47
20210215012
2021-07-15

Riser system

 #48
20210207451
2021-07-08

Variable bore ram assembly

 #49
20210156215
2021-05-27

CAVITY LOCK SYSTEM FOR A BLOWOUT PREVENTER

 #50
20210131214
2021-05-06

Blowout preventer and method

 #51
20210062606
2021-03-04

Blowout preventer system and method

 #52
20200340879
2020-10-29

Temperature based leak detection for blowout preventers

 #53
20200332617
2020-10-22

Blowout preventer shearing ram

 #54
20200318454
2020-10-08

Blowout Preventer with Intersecting Cavities

 #55
20200284274
2020-09-10

SELF ACTUATING RAM ACTUATOR FOR WELL PRESSURE CONTROL DEVICE

 #56
20200217167
2020-07-09

Hang off ram preventer

 #57
20200217166
2020-07-09

Blowout preventer with a threaded ram

 #58
20200182005
2020-06-11

Valve having protected, moveable seal and seal assembly therefor

 #59
20200157908
2020-05-21

Sealing Using Elastomeric Material Having Extrusion Resistant Elements

 #60
20200141203
2020-05-07

METHOD AND SYSTEM FOR SUPPLYING POWER FLUID TO A WELL PRESSURE CONTROL DEVICE

 #61
20200087998
2020-03-19

Pipe ram annular adjustable restriction for managed pressure drilling with changeable rams

 #62
20200072013
2020-03-05

Ram block inner seal assembly and seal therefore

 #63
20200072011
2020-03-05

Sliding subsea electronics module chassis

 #64
20200063505
2020-02-27

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

 #65
20200056630
2020-02-20

Accumulator system

 #66
20200048991
2020-02-13

Pressure control equipment systems and methods

 #67
20200032609
2020-01-30

Frac stack well intervention

 #68
20200003015
2020-01-02

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

 #69
20190360299
2019-11-28

Multifunction blowout preventer

 #70
20190360294
2019-11-28

Completion interface systems for use with surface BOPS

 #71
20190345789
2019-11-14

Well bore control system

 #72
20190330955
2019-10-31

BLOWOUT PREVENTER

 #73
20190301635
2019-10-03

Subsea shut-off device

 #74
20190271207
2019-09-05

BOP single-piece replaceable insert

 #75
20190271206
2019-09-05

Replaceable seat seal assembly

 #76
20190264525
2019-08-29

Well bore control system

 #77
20190234170
2019-08-01

Blowout preventer bonnet retention methods and systems

 #78
20190211643
2019-07-11

Assembly and Method for Monitoring Position of Blowout Preventer Rams

 #79
20190203555
2019-07-04

Blowout preventer

 #80
20190195038
2019-06-27

Riser system

 #81
20190162039
2019-05-30

Blowout preventers with pressure-balanced operating shafts

 #82
20190145217
2019-05-16

BLOWOUT PREVENTER BONNET ASSEMBLY

 #83
20190128085
2019-05-02

Drilling and Production System Components with Wide Flange Bodies

 #84
20190100974
2019-04-04

Wireline valve with flapper

 #85
20190093438
2019-03-28

Blowout preventer with choke and kill line pass through conduits

 #86
20190049017
2019-02-14

Anti-extrusion seal arrangement and ram-style blowout preventer

 #87
20190003275
2019-01-03

Pressure assisted motor operated ram actuator for well pressure control device

 #88
20180347710
2018-12-06

Blowout preventer having rotation-operated portion

 #89
20180313177
2018-11-01

Wellsite tool guide assembly and method of using same

 #90
20180283126
2018-10-04

Ram for a blowout preventer and a blowout preventer provided with rams

 #91
20180283110
2018-10-04

Multi-level deck system for blowout preventers

 #92
20180274322
2018-09-27

Blowout prevention system including blind shear ram

 #93
20180274311
2018-09-27

Coiled tubing bottom hole assembly deployment

 #94
20180252060
2018-09-06

ROD LOCKING APPARATUS

 #95
20180195361
2018-07-12

Wellhead assembly with integrated tubing rotator

 #96
20180163501
2018-06-14

FRAC stacks with rams to close bores and control flow of fracturing fluid

 #97
20180087342
2018-03-29

Blowout preventer monitoring systems and methods

 #98
20180087341
2018-03-29

Inverted pipe ram protection system

 #99
20180087340
2018-03-29

Assembly and method for monitoring position of blowout preventer rams

 #100
20180045011
2018-02-15

Packer assembly with inserts for blowout preventer

 #101
20180038390
2018-02-08

Hydraulic timing device

 #102
20180030802
2018-02-01

Deployment blow out preventer with interlock

 #103
20180023361
2018-01-25

Packer assembly with multi-material inserts for blowout preventer

 #104
20170362929
2017-12-21

Methods for assessing the reliability of hydraulically-actuated devices and related systems

 #105
20170362911
2017-12-21

Guided locking ram blocks

 #106
20170335649
2017-11-23

Subsea slanted wellhead system and BOP system with dual injector head units

 #107
20170321834
2017-11-09

Pipe ram joint

 #108
20170314358
2017-11-02

Blowout preventer with wide flange body

 #109
20170204695
2017-07-20

SELF HEALING BLOWOUT PREVENTER SEALS AND PACKERS

 #110
20170191338
2017-07-06

Subsea equipment visual indicator

 #111
20170191336
2017-07-06

CLOSURE MEMBER INCLUDING A REPLACEABLE INSERT

 #112
20170175927
2017-06-22

Closure member position indicator system for use in a blowout preventer

 #113
20170167220
2017-06-15

Assembly and Method for Monitoring Position of Blowout Preventer Rams

 #114
20170167219
2017-06-15

Variable ram for a blowout preventer and an associated method thereof

 #115
20170159393
2017-06-08

Pipe ram assembly for many actuation cycles

 #116
20170159392
2017-06-08

INFLATABLE VARIABLE BORE RAM

 #117
20170159391
2017-06-08

Variable ram packer for blowout preventer

 #118
20170152967
2017-06-01

Systems and methods for monitoring blowout preventer equipment

 #119
20170145771
2017-05-25

Packer assembly with multiple different inserts for blowout preventer

 #120
20170108018
2017-04-20

Magnetorheological fluid locking system

 #121
20170107778
2017-04-20

Boltless Locking of BOP Bonnet

 #122
20170101841
2017-04-13

Blowout preventer with ram packer assemblies with support member

 #123
20170067309
2017-03-09

Blowout preventer with hinged bonnet

 #124
20170058627
2017-03-02

Blowout preventer with shear ram

 #125
20170058626
2017-03-02

Blowout Preventer with High-Temperature Pipe Ram Assembly

 #126
20170058625
2017-03-02

Blowout Preventer with Pipe Ram Packer Assemblies with Support Tab

 #127
20170058624
2017-03-02

Blowout preventer with inflatable element

 #128
20170016286
2017-01-19

METHOD OF INSTALLING COILED TUBING WITH A PLURALITY OF INTEGRATED LARGE DIAMETER EXTERNAL ASSEMBLIES

 #129
20170009549
2017-01-12

Adjustable lock-out ram for production BOP applications

 #130
20160377194
2016-12-29

Boltless ram blowout preventer bonnet

 #131
20160356290
2016-12-08

Accumulator volume detector using an optical measurement

 #132
20160326826
2016-11-10

Emergency power system for blowout preventer of a petroleum apparatus

 #133
20160319623
2016-11-03

Pressure assisted blowout preventer

 #134
20160305211
2016-10-20

Blowout preventer end connection

 #135
20160251927
2016-09-01

Locking apparatus

 #136
20160222746
2016-08-04

BOP control system circuit to reduce hydraulic flow/water hammer

 #137
20160215583
2016-07-28

Compound blowout preventer seal and method of using same

 #138
20160160599
2016-06-09

Variable ram packer with strain reduction features

 #139
20160160598
2016-06-09

Method of closing a blowout preventer seal based on seal erosion

 #140
20160153258
2016-06-02

Apparatus and method to contain flange, pipe and valve leaks

 #141
20160138385
2016-05-19

Subsurface Pipe Dimension and Position Indicating Device

 #142
20160138356
2016-05-19

Well bore control system

 #143
20160131251
2016-05-12

Actuator provided with a gear box, position indicator for a gear box, and related methods

 #144
20160084031
2016-03-24

MULTI-STAGE BLOWOUT PREVENTER AND METHOD OF USING SAME

 #145
20160069472
2016-03-10

Visual ram position indicator apparatuses and methods

 #146
20160047192
2016-02-18

Double valve block and actuator assembly including same

 #147
20160024870
2016-01-28

Asymmetrical button for ram-type blowout preventers

 #148
20160017685
2016-01-21

Ram blowout preventer piston rod subassembly

 #149
20150361786
2015-12-17

Subsea electronic data system

 #150
20150361755
2015-12-17

Multi-cavity blowout preventer

 #151
20150275653
2015-10-01

Autonomous painted joint simulator and method to reduce the time required to conduct a subsea dummy run

 #152
20150275610
2015-10-01

Rod hang-off system

 #153
20150198004
2015-07-16

Electromagnetic actuator for a blowout preventer

 #154
20150198003
2015-07-16

Blowout preventer with packer assembly and method of using same

 #155
20150184497
2015-07-02

Magnetorheological fluid locking system

 #156
20150184481
2015-07-02

Ram assemblies for blowout preventers

 #157
20150184478
2015-07-02

Diverter assemblies and systems for forming seals around pipe elements and methods of using same

 #158
20150176359
2015-06-25

Blowout preventer

 #159
20150167417
2015-06-18

Pressure assisted blowout preventer

 #160
20150159459
2015-06-11

Blowout preventer monitoring system and method of using same

 #161
20150090461
2015-04-02

Detachable capping device and method for an oil/gas well under blowout conditions

 #162
20150034298
2015-02-05

Intensifier ram blowout preventer

 #163
20150013990
2015-01-15

Double valve block and actuator assembly including same

 #164
20140299797
2014-10-09

Blowout preventer and rams

 #165
20140284506
2014-09-25

RAM SHAFT ASSEMBLY FOR BLOWOUT PREVENTER

 #166
20140251468
2014-09-11

Locking device

 #167
20140224500
2014-08-14

Well emergency separation tool for use in separating a tubular element

 #168
20140209320
2014-07-31

Portable ram block changer

 #169
20140190702
2014-07-10

Subsea connection apparatus for a surface blowout preventer stack

 #170
20140183381
2014-07-03

REINFORCED VARIABLE RAM PACKER USING FABRIC

 #171
20140166264
2014-06-19

Blowout preventer system having position and pressure sensing device and related methods

 #172
20140084192
2014-03-27

Linear clutch for blowout preventer

 #173
20140064029
2014-03-06

Subsea electronic data system

 #174
20140034293
2014-02-06

Contoured ram bore on type U blowout preventer

 #175
20140021382
2014-01-23

Asymmetrical button for ram-type blowout preventers

 #176
20140021381
2014-01-23

Blowout preventer with pressure-isolated operating piston assembly

 #177
20130313449
2013-11-28

Blowout preventer ram assembly and method of using same

 #178
20130264503
2013-10-10

Blowout preventer with locking ram assembly and method of using same

 #179
20130264502
2013-10-10

Blowout preventer locking door assembly and method of using same

 #180
20130264501
2013-10-10

Blowout preventer seal assembly and method of using same

 #181
20130228342
2013-09-05

Apparatus and methods for restricting flow in a bore

 #182
20130175044
2013-07-11

Retrievable subsea device and method

 #183
20130146793
2013-06-13

Visual ram position indicator apparatuses and methods

 #184
20130140034
2013-06-06

Seabed well influx control system

 #185
20130126764
2013-05-23

Multi-deployable subsea stack system

 #186
20130126763
2013-05-23

Blowout preventer and rams

 #187
20130099449
2013-04-25

Seal

 #188
20130097836
2013-04-25

Ram packer extraction tool

 #189
20130062540
2013-03-14

Load-sharing ram packer for ram type blowout preventers

 #190
20130026395
2013-01-31

Blowout preventer

 #191
20130026394
2013-01-31

Lock mechanism for blowout preventer and method

 #192
20130025689
2013-01-31

Secondary activation of packer and method

 #193
20130008715
2013-01-10

Double valve block and actuator assembly including same

 #194
20120227987
2012-09-13

Method and apparatus for sealing a wellbore

 #195
20120199762
2012-08-09

Blowout preventer translating shaft locking system

 #196
20120199360
2012-08-09

Subsea connection apparatus for a surface blowout preventer stack

 #197
20120088134
2012-04-12

Thermal battery for power systems

 #198
20120073816
2012-03-29

Blowout preventer blade assembly and method of using same

 #199
20120073815
2012-03-29

Blowout preventer blade assembly and method of using same

 #200
20120012340
2012-01-19

Method and system for sealing a wellbore

 #201
20120012339
2012-01-19

System and method for sealing a wellbore

 #202
20120001101
2012-01-05

External position indicator of ram blowout preventer

 #203
20120000646
2012-01-05

Blowout preventer monitoring system and method of using same

 #204
20110155386
2011-06-30

Multi-deployable subsea stack system

 #205
20110140013
2011-06-16

Blowout preventer with rope packing seal

 #206
20110120734
2011-05-26

Ram blowout preventer stroke limiting and method

 #207
20110120699
2011-05-26

Breech lock mechanisms for blowout preventer and method

 #208
20110061854
2011-03-17

SUBSEA ASSEMBLY

 #209
20110048185
2011-03-03

Method and systems for using a shim plate for increased strength

 #210
20110031421
2011-02-10

Blowout preventer having wear, seal and guide plate inserts

 #211
20110030943
2011-02-10

Portable ram block changer

 #212
20110030805
2011-02-10

Blowout preventer with lock

 #213
20110012311
2011-01-20

Body to bonnet seal on a blowout preventer

 #214
20110005743
2011-01-13

Mounts for blowout preventer bonnets and methods of use

 #215
20100288504
2010-11-18

Subsea connection apparatus for a surface blowout preventer stack

 #216
20100243926
2010-09-30

Blowout preventer with ram socketing

 #217
20100155086
2010-06-24

Method and device with biasing force for sealing a well

 #218
20100155080
2010-06-24

Bidirectional ram BOP and method

 #219
20100152901
2010-06-17

Position data based method, interface and device for blowout preventer

 #220
20100095507
2010-04-22

Reinforcement of irregular pressure vessels

 #221
20090183880
2009-07-23

Blowout preventer having modified hydraulic operator

 #222
20090151959
2009-06-18

Quick lock wireline valve/blow-out preventor and methods for making and using same

 #223
20090050828
2009-02-26

Blow out preventers

 #224
20080302536
2008-12-11

Multi-deployable subsea stack system

 #225
20080265188
2008-10-30

Ram locking blowout preventer

 #226
20080197306
2008-08-21

RAM BOP position sensor

 #227
20080196888
2008-08-21

Ram BOP position sensor

 #228
20080164431
2008-07-10

Dual-cylinder blowout preventer operator system

 #229
20080142746
2008-06-19

Mounts for blowout preventer bonnets and methods of use

 #230
20080135791
2008-06-12

Dual-direction ram-type blowout preventer seal

 #231
20080099701
2008-05-01

Fluid saving blowout preventer operator system

 #232
20080078965
2008-04-03

BLOWOUT PREVENTER AND PUMP ROD CLAMP

 #233
20080078554
2008-04-03

Imputing strength gradient in pressure vessels

 #234
20080078081
2008-04-03

HIGH PRESSURE-RATED RAM BLOWOUT PREVENTER AND METHOD OF MANUFACTURE

 #235
20080067458
2008-03-20

Blowout preventer operator locking system

 #236
20080048140
2008-02-28

Fluid saving blowout preventer operator system

 #237
20080048139
2008-02-28

Dual-cylinder blowout preventer operator system

 #238
20080040070
2008-02-14

Position Indicator for a Blowout Preventer

 #239
20070278435
2007-12-06

Method and apparatus

 #240
20070251688
2007-11-01

Non-intrusive pressure gage

 #241
20070175626
2007-08-02

Wellhead blowout preventer with extended ram for sealing central bore

 #242
20070102656
2007-05-10

Mounts for blowout preventer bonnets

 #243
20070102655
2007-05-10

Blowout preventer with breech assembly

 #244
20070044976
2007-03-01

Inner guide seal assembly and method for a ram type BOP system

 #245
20060283602
2006-12-21

Mounts for blowout preventer bonnets

 #246
20060278406
2006-12-14

Rod lock for ram blowout preventers

 #247
20060254780
2006-11-16

Variable size coil tubing gripping elements

 #248
20060243451
2006-11-02

Mounts for blowout preventer bonnets

 #249
20060213654
2006-09-28

Wellhead valves

 #250
20060169933
2006-08-03

Blowout preventer and locking mechanism

 #251
20060162936
2006-07-27

Mounts for blowout preventer bonnets

 #252
20060076526
2006-04-13

Anodic Protective Seal in a Blowout Preventer

 #253
20060000992
2006-01-05

Blowout preventer and movable bonnet support

 #254
20050263291
2005-12-01

BOP conversion apparatus

 #255
20050242309
2005-11-03

Lock bars for blowout preventer

 #256
20050242308
2005-11-03

Blowout preventer and ram actuator

 #257
20050242307
2005-11-03

Blowout preventer and movable ram block support

 #258
20050211428
2005-09-29

Pump rod clamp and blowout preventer

 #259
20050183499
2005-08-25

Method and device for measuring a path that has been covered

 #260
20050098754
2005-05-12

Manual control device

 #261
20050006087
2005-01-13

Variable bore ram

 #262
19042800
2026-03-24

Stacked iris next generation annular packing unit

 #263
15365413
2018-02-27

Connection for a pressurized fluid flow path

 #264
13947084
2014-08-05

Blowout preventer and flow regulator