Patents-Review.com
ClassID:

135477 ⎘

E21B33/063 - 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 for shearing drill pipes

Recent Application in this class:
#1
20260085590
2026-03-26

MULTI-POINT BLADE AND POCKET BLADE FOR A SHEAR RAM IN A BLOW-OUT PREVENTER

 #2
20260028890
2026-01-29

AUTOMATIC THRUST ACTIVATED MULTI-SPEED REDUCTION GEAR AND CLUTCH SYSTEM AND METHOD

 #3
20250376907
2025-12-11

ELECTRICALLY-ACTUATED BLOW-OUT PREVENTER

 #4
20250257626
2025-08-14

AUTOMATIC THRUST ACTIVATED MULTI-SPEED REDUCTION GEAR AND CLUTCH SYSTEM AND METHOD

 #5
20250243726
2025-07-31

BLOWOUT PREVENTER SYSTEM AND METHOD UTILIZING SHEAR RAM BUTTRESS

 #6
20250092754
2025-03-20

INTENSIFIER RAM BLOWOUT PREVENTER

 #7
20250084718
2025-03-13

BLOWOUT PREVENTER RAM SEALS AND RAM BLOCKS

 #8
20250067141
2025-02-27

Blowout preventer system and method utilizing shear ram buttress

 #9
20250052127
2025-02-13

CLOSING UNIT SYSTEM FOR A BLOWOUT PREVENTER

 #10
20250003307
2025-01-02

SYSTEM AND METHOD FOR REMOTE OPERATION OF WELL EQUIPMENT

 #11
20240401428
2024-12-05

ANNULAR CLOSING SYSTEM AND METHOD FOR USE IN BLOWOUT PREVENTER

 #12
20240384619
2024-11-21

HAMMER SHEAR RAM

 #13
20240384618
2024-11-21

ELECTRICALLY-ACTUATED BLOW-OUT PREVENTER

 #14
20240344417
2024-10-17

PISTON ACTUATED VALVE APPARATUS

 #15
20240328277
2024-10-03

BLOWOUT PREVENTER WITH MULTIPLE APPLICATION RAM BLADES

 #16
20240309721
2024-09-19

ONE WAY FLOW BLOWOUT PREVENTER SIDE PORT

 #17
20240263535
2024-08-08

CUTTERS FOR SEVERING OBJECTS IN BORES

 #18
20240240536
2024-07-18

INTENSIFIER RAM BLOWOUT PREVENTER

 #19
20240229591
2024-07-11

SYSTEMS, METHODS AND APPARATUS FOR IMPROVED MANAGEMENT OF HYDRAULICALLY ACTUATED DEVICES AND RELATED SYSTEMS

 #20
20240183243
2024-06-06

Controlling a subsea blowout preventer stack

 #21
20240133262
2024-04-25

SYSTEMS, METHODS AND APPARATUS FOR IMPROVED MANAGEMENT OF HYDRAULICALLY ACTUATED DEVICES AND RELATED SYSTEMS

 #22
20240110456
2024-04-04

NON-SEALING CASING SHEAR RAMS

 #23
20240011363
2024-01-11

Side packer for a blowout preventer

 #24
20230383613
2023-11-30

Interlock for a drill rig and method for operating a drill rig

 #25
20230366312
2023-11-16

SYSTEM AND METHOD FOR SUBSEA WELL LEAK DETECTION AND CONTAINMENT

 #26
20230366286
2023-11-16

Valve and method for closing extraction wells under emergency conditions

 #27
20230313630
2023-10-05

Closing unit system for a blowout preventer

 #28
20230258049
2023-08-17

Closing unit system for a blowout preventer

 #29
20230203908
2023-06-29

Well control sealing system

 #30
20230127022
2023-04-27

Intelligent Well Control System and Method for Surface Blow-Out Preventer Equipment Stack

 #31
20230052359
2023-02-16

Device and apparatus

 #32
20230051577
2023-02-16

Piston actuated valve apparatus

 #33
20230036377
2023-02-02

Method for producing extra force and reduced hydraulic supply for shearing pipe

 #34
20230030302
2023-02-02

Method for shearing pipe and providing a compression seal

 #35
20230022591
2023-01-26

Swivel Apparatus For Fixed Casing Ram

 #36
20220356777
2022-11-10

Blowout preventer shearing ram

 #37
20220341277
2022-10-27

Shear ram for a blowout preventer

 #38
20220325594
2022-10-13

Pressure control apparatus inserts

 #39
20220275698
2022-09-01

HARDFACED METAL SURFACE AND METHOD OF MANUFACTURE

 #40
20220251920
2022-08-11

Station keeping and emergency disconnecting capability for a vessel connected to a subsea wellhead in shallow water

 #41
20220213757
2022-07-07

Blowout preventer with multiple application ram blades

 #42
20220184696
2022-06-16

Hot isostatic pressing (HIP) fabrication of multi-metallic components for pressure-controlling equipment

 #43
20220184695
2022-06-16

Hot isostatic pressing (HIP) fabrication of multi-metallic components for pressure-controlling equipment

 #44
20220098952
2022-03-31

Gap control for wireline shear rams

 #45
20220081987
2022-03-17

Inserts for variable bore rams

 #46
20220065066
2022-03-03

Rotating control device systems and methods

 #47
20220056778
2022-02-24

Closing unit system for a blowout preventer

 #48
20220018205
2022-01-20

High pressure blowout preventer system

 #49
20220018204
2022-01-20

Shear ram with vertical shear control

 #50
20210381333
2021-12-09

Shear ram for a blowout preventer

 #51
20210348461
2021-11-11

Safe dynamic handover between managed pressure drilling and well control

 #52
20210340833
2021-11-04

Blowout preventer

 #53
20210340832
2021-11-04

Multi-intervention blowout preventer and methods of use thereof

 #54
20210310327
2021-10-07

Subsea test tree assembly

 #55
20210301617
2021-09-30

High pressure riser connection to wellhead

 #56
20210277739
2021-09-09

Blowout preventer with dual function rams

 #57
20210270105
2021-09-02

Side packer for a blowout preventer

 #58
20210262312
2021-08-26

High pressure blowout preventer system

 #59
20210156217
2021-05-27

Interlocking dual v-shaped shear ram and method

 #60
20210156216
2021-05-27

NOVEL COIL-TUBING RAM BLOWOUT PREVENTER

 #61
20210062608
2021-03-04

Blowout preventer system and method

 #62
20210062607
2021-03-04

BLOWOUT PREVENTER SYSTEM AND METHOD

 #63
20200408059
2020-12-31

Hardfaced metal surface and method of manufacture

 #64
20200408058
2020-12-31

Blowout preventer control system and methods for controlling a blowout preventer

 #65
20200370388
2020-11-26

Blowout preventer ram packer assembly

 #66
20200340562
2020-10-29

Electro mechanical power actuator

 #67
20200340324
2020-10-29

Station keeping and emergency disconnecting capability for a vessel connected to a subsea wellhead in shallow water

 #68
20200332653
2020-10-22

SUBSEA PROCESSOR FOR UNDERWATER DRILLING OPERATIONS

 #69
20200332617
2020-10-22

Blowout preventer shearing ram

 #70
20200318454
2020-10-08

Blowout Preventer with Intersecting Cavities

 #71
20200300056
2020-09-24

Lower stack assembly of a blow-out preventer for a hydrocarbon extraction well and method thereof

 #72
20200208489
2020-07-02

Kinetic shear ram for well pressure control apparatus

 #73
20200157906
2020-05-21

Subsea energy storage for blow out preventers (BOP)

 #74
20200080387
2020-03-12

Shearable tubular system and method

 #75
20200072014
2020-03-05

Blowout preventer

 #76
20200048991
2020-02-13

Pressure control equipment systems and methods

 #77
20200032608
2020-01-30

Fracturing systems and methods with rams

 #78
20190383112
2019-12-19

Tool for severing or assisting in the severing of a conduit

 #79
20190368299
2019-12-05

Blowout Preventer Control

 #80
20190345790
2019-11-14

Injectable Seal for A Blowout Preventer

 #81
20190345789
2019-11-14

Well bore control system

 #82
20190340322
2019-11-07

Method to simulate bop shearing

 #83
20190309596
2019-10-10

Wireline blind shear ram

 #84
20190309595
2019-10-10

Hardfaced metal surface and method of manufacture

 #85
20190301635
2019-10-03

Subsea shut-off device

 #86
20190284897
2019-09-19

BOP compact bonnet-booster (CBB) piston assembly and method

 #87
20190277106
2019-09-12

Gate valve

 #88
20190271225
2019-09-05

BOP elastomer health monitoring

 #89
20190264525
2019-08-29

Well bore control system

 #90
20190264524
2019-08-29

Integrated controls for subsea landing string, blow out preventer, lower marine riser package

 #91
20190249507
2019-08-15

Well system with degradable plug

 #92
20190218879
2019-07-18

Blowout preventer stack

 #93
20190211644
2019-07-11

Wellbore control device

 #94
20190203555
2019-07-04

Blowout preventer

 #95
20190162040
2019-05-30

SIDE PACKER FOR A BLOWOUT PREVENTER

 #96
20190153802
2019-05-23

Locking mechanism for subsea compact cutting device (CCD)

 #97
20190145214
2019-05-16

Dual compact cutting device intervention system

 #98
20190128086
2019-05-02

Automatic well control

 #99
20190093438
2019-03-28

Blowout preventer with choke and kill line pass through conduits

 #100
20190078426
2019-03-14

Well construction control system

 #101
20190078411
2019-03-14

BOP booster piston assembly and method

 #102
20190078409
2019-03-14

Installing a tubular string through a blowout preventer

 #103
20190063175
2019-02-28

Autonomous blowout preventer

 #104
20190017344
2019-01-17

Shear rams for a blowout preventer

 #105
20190017343
2019-01-17

Shear rams for a blowout preventer

 #106
20190010777
2019-01-10

Blowout preventer with interlocking ram assembly and method of using same

 #107
20190003275
2019-01-03

Pressure assisted motor operated ram actuator for well pressure control device

 #108
20180347304
2018-12-06

BOP compact bonnet-booster (CBB) piston assembly and method

 #109
20180340970
2018-11-29

In situ pressure balanced oil-filled cable connector integrity monitoring

 #110
20180283560
2018-10-04

BLOWOUT PREVENTION SYSTEM INCLUDING BLIND SHEAR RAM

 #111
20180283128
2018-10-04

Blowout prevention system including blind shear ram

 #112
20180283127
2018-10-04

Blowout prevention system including blind shear ram

 #113
20180283126
2018-10-04

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

 #114
20180274322
2018-09-27

Blowout prevention system including blind shear ram

 #115
20180252092
2018-09-06

SENSOR SYSTEM FOR BLOWOUT PREVENTER AND METHOD OF USE

 #116
20180238132
2018-08-23

Tool for severing or assisting in the severing of a conduit

 #117
20180223882
2018-08-09

Flow responsiveness enhancer for a blowout preventer

 #118
20180216435
2018-08-02

Enhanced blowout preventer

 #119
20180202252
2018-07-19

Blowout preventer control system and methods for controlling a blowout preventer

 #120
20180195362
2018-07-12

Improved Pressure Barrier System

 #121
20180187506
2018-07-05

EMERGENCY SHUTDOWN AND DISCONNECT OF SUBSEA TOOLS USING ORIENTATION

 #122
20180163501
2018-06-14

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

 #123
20180156029
2018-06-07

Sensing of the contents of a bore

 #124
20180142543
2018-05-24

System and method for monitoring a blowout preventer

 #125
20180135376
2018-05-17

Wellbore control device

 #126
20180087340
2018-03-29

Assembly and method for monitoring position of blowout preventer rams

 #127
20180080300
2018-03-22

Blowout preventer

 #128
20180073320
2018-03-15

High pressure blowout preventer system

 #129
20180073318
2018-03-15

Subsea energy storage for well control equipment

 #130
20180073304
2018-03-15

Shearable tubular system and method

 #131
20180066494
2018-03-08

Compact cutting system and method

 #132
20180058195
2018-03-01

Magnetic detection of drill pipe connections

 #133
20180058170
2018-03-01

Shear blade

 #134
20180045011
2018-02-15

Packer assembly with inserts for blowout preventer

 #135
20180038220
2018-02-08

Detection system for a wellsite and method of using same

 #136
20180030800
2018-02-01

Well emergency separation tool for use in separating a tubular element

 #137
20180023386
2018-01-25

Detecting apparatus

 #138
20180016861
2018-01-18

Valve with balanced blind seal ring

 #139
20180010411
2018-01-11

SYSTEMS AND METHODS FOR CUTTING A TUBULAR MEMBER

 #140
20170362911
2017-12-21

Guided locking ram blocks

 #141
20170350210
2017-12-07

Rapid mobilization air-freightable capping stack system

 #142
20170335649
2017-11-23

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

 #143
20170328166
2017-11-16

SHEAR RAM TYPE BLOWOUT PREVENTER WITH INTEGRAL GAS PRODUCING GENERATOR

 #144
20170328165
2017-11-16

Compact cutting system and method

 #145
20170314358
2017-11-02

Blowout preventer with wide flange body

 #146
20170234335
2017-08-17

Hydraulic manifold control assembly

 #147
20170218717
2017-08-03

KINETIC SHEAR RAM

 #148
20170191337
2017-07-06

SHEARING SEQUENCE FOR A BLOWOUT PREVENTER

 #149
20170167220
2017-06-15

Assembly and Method for Monitoring Position of Blowout Preventer Rams

 #150
20170159394
2017-06-08

Proportional Electrohydraulic Servo Valve Closed Loop Feedback Control of Pressure Reducing and Relieving Hydraulic Circuit

 #151
20170152967
2017-06-01

Systems and methods for monitoring blowout preventer equipment

 #152
20170152723
2017-06-01

Landing string

 #153
20170145772
2017-05-25

Side packer assembly with support member for ram blowout preventer

 #154
20170138152
2017-05-18

Valve apparatus

 #155
20170130556
2017-05-11

Double valve block and actuator assembly including same

 #156
20170130550
2017-05-11

Blind shear ram

 #157
20170130549
2017-05-11

Blowout preventer including shear body

 #158
20170122056
2017-05-04

Subsea energy storage for well control equipment

 #159
20170108018
2017-04-20

Magnetorheological fluid locking system

 #160
20170107810
2017-04-20

DETECTING APPARATUS

 #161
20170107780
2017-04-20

Method for increasing subsea accumulator volume

 #162
20170107779
2017-04-20

BOP booster piston assembly and method

 #163
20170102088
2017-04-13

Secondary thrust wireline shearing valve

 #164
20170089163
2017-03-30

Methods and systems for monitoring a blowout preventor

 #165
20170067310
2017-03-09

VERTICAL XMAS TREE AND WORKOVER ASSEMBLY

 #166
20170067309
2017-03-09

Blowout preventer with hinged bonnet

 #167
20170067308
2017-03-09

Lateral seal for blowout preventer shear blocks

 #168
20170058628
2017-03-02

Blowout preventer including blind seal assembly

 #169
20170058627
2017-03-02

Blowout preventer with shear ram

 #170
20170058623
2017-03-02

Annual blowout preventer with radial actuating member

 #171
20170022776
2017-01-26

Wellhead Shear/Blind Ram Assembly

 #172
20160377194
2016-12-29

Boltless ram blowout preventer bonnet

 #173
20160341014
2016-11-24

In-riser power generation

 #174
20160340998
2016-11-24

Proof testing apparatus and method for reducing the probability of failure on demand of safety rated hydraulic components

 #175
20160326826
2016-11-10

Emergency power system for blowout preventer of a petroleum apparatus

 #176
20160319624
2016-11-03

Blowout preventer with projectile

 #177
20160319623
2016-11-03

Pressure assisted blowout preventer

 #178
20160312904
2016-10-27

Shearing gate valve system

 #179
20160312565
2016-10-27

Autonomous blowout preventer

 #180
20160312564
2016-10-27

Shear block design for blowout preventer

 #181
20160312563
2016-10-27

Propellant energy to operate subsea equipment

 #182
20160281462
2016-09-29

Valve with integral piston

 #183
20160265301
2016-09-15

Asymetrically cutting valve seats

 #184
20160258238
2016-09-08

Blowout Preventer with Blade Including Multiple Profiles

 #185
20160201423
2016-07-14

Blowout preventer stack and supply system

 #186
20160186524
2016-06-30

SUBSEA IN SITU LASER FOR LASER ASSISTED BLOW OUT PREVENTER AND METHODS OF USE

 #187
20160160598
2016-06-09

Method of closing a blowout preventer seal based on seal erosion

 #188
20160138356
2016-05-19

Well bore control system

 #189
20160108694
2016-04-21

Compact cutting system and method

 #190
20160102520
2016-04-14

Structure with feed through

 #191
20160102518
2016-04-14

Shear Ram Blowout Preventer with Engagement Feature

 #192
20160097250
2016-04-07

Blind shear ram

 #193
20160069472
2016-03-10

Visual ram position indicator apparatuses and methods

 #194
20160060995
2016-03-03

GATE VALVE ASSEMBLY COMPRISING A SHEAR GATE

 #195
20160053565
2016-02-25

Drive off method from subsea well with pipe retention capability

 #196
20160032679
2016-02-04

Multi-barrier seal system

 #197
20150369033
2015-12-24

APPARATUS FOR HYDROCARBON OPERATIONS AND METHOD OF USE

 #198
20150361755
2015-12-17

Multi-cavity blowout preventer

 #199
20150354309
2015-12-10

METHOD FOR INCREASING SUBSEA ACCUMULATOR VOLUME

 #200
20150198004
2015-07-16

Electromagnetic actuator for a blowout preventer

 #201
20150176359
2015-06-25

Blowout preventer

 #202
20150123022
2015-05-07

Electronic deadman/autoshear circuit

 #203
20150083431
2015-03-26

Recovery valve

 #204
20150076377
2015-03-19

Power boost assist closed device for actuators

 #205
20150034298
2015-02-05

Intensifier ram blowout preventer

 #206
20150008000
2015-01-08

Power actuator device and method for submerged use at petroleum exploitation

 #207
20140345872
2014-11-27

Laser assisted system for controlling deep water drilling emergency situations

 #208
20140332225
2014-11-13

Cutting device, safety valve, method and uses for severing a pipe-string-related object in a safety valve for a well

 #209
20140264099
2014-09-18

Blowout preventer with wedge ram assembly and method of using same

 #210
20140251633
2014-09-11

Subsea well intervention system and methods

 #211
20140224500
2014-08-14

Well emergency separation tool for use in separating a tubular element

 #212
20140190702
2014-07-10

Subsea connection apparatus for a surface blowout preventer stack

 #213
20140166264
2014-06-19

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

 #214
20140131049
2014-05-15

Subsea energy storage for blow out preventers (BOP)

 #215
20140110611
2014-04-24

BLOWOUT PREVENTER SEAL ASSEMBLY AND METHOD OF USING SAME

 #216
20140102713
2014-04-17

Communications systems and methods for subsea processors

 #217
20140102712
2014-04-17

Subsea processor for underwater drilling operations

 #218
20140061522
2014-03-06

Valve Actuator with Degressive Characteristic Spring

 #219
20140048245
2014-02-20

Replaceable Wear Plates for Use with Blind Shear Rams

 #220
20140041501
2014-02-13

Rotary actuated cutter module system and methodology

 #221
20140034316
2014-02-06

Torsional shearing of oilfield tubulars

 #222
20140021381
2014-01-23

Blowout preventer with pressure-isolated operating piston assembly

 #223
20140001390
2014-01-02

Split seat shear valve

 #224
20140000902
2014-01-02

Reduced mechanical energy well control systems and methods of use

 #225
20130341870
2013-12-26

Multi-barrier seal system

 #226
20130341539
2013-12-26

VALVE APPARATUS

 #227
20130299724
2013-11-14

Nested cyclinder compact blowout preventer

 #228
20130299172
2013-11-14

Shear seal blowout preventer

 #229
20130270466
2013-10-17

Wellbore control device

 #230
20130221250
2013-08-29

Position data based method, interface and device for blowout preventer

 #231
20130220627
2013-08-29

High energy tubular shear

 #232
20130168075
2013-07-04

Shear blade and method of attachment to shear rams

 #233
20130153242
2013-06-20

IN-RISER POWER GENERATION

 #234
20130153204
2013-06-20

RAM BOP SHEAR BLADE PROCESS TO ENHANCE THE TOUGHNESS

 #235
20130146793
2013-06-13

Visual ram position indicator apparatuses and methods

 #236
20130119283
2013-05-16

Blowout preventer with shearing blades

 #237
20130032361
2013-02-07

Recovery valve

 #238
20130026395
2013-01-31

Blowout preventer

 #239
20130008715
2013-01-10

Double valve block and actuator assembly including same

 #240
20120318493
2012-12-20

Pipe guide arms for blind shear rams

 #241
20120305258
2012-12-06

Method for increasing subsea accumulator volume

 #242
20120247770
2012-10-04

Methods of releasing at least one tubing string below a blow-out preventer

 #243
20120217019
2012-08-30

Shear laser module and method of retrofitting and use

 #244
20120217018
2012-08-30

Laser assisted blowout preventer and methods of use

 #245
20120217017
2012-08-30

Laser assisted system for controlling deep water drilling emergency situations

 #246
20120205561
2012-08-16

Increased shear power for subsea BOP shear rams

 #247
20120199360
2012-08-09

Subsea connection apparatus for a surface blowout preventer stack

 #248
20120193556
2012-08-02

Shear blade geometry and method

 #249
20120193087
2012-08-02

Shear blade geometry and method

 #250
20120168651
2012-07-05

Blowout preventer with shearing blades

 #251
20120152555
2012-06-21

Circuit functional test system and method

 #252
20120138159
2012-06-07

Rechargeable system for subsea force generating device and method

 #253
20120103629
2012-05-03

Shear boost triggering and bottle reducing system and method

 #254
20120088134
2012-04-12

Thermal battery for power systems

 #255
20120085543
2012-04-12

Backup wellhead blowout prevention system and method

 #256
20120073816
2012-03-29

Blowout preventer blade assembly and method of using same

 #257
20120073815
2012-03-29

Blowout preventer blade assembly and method of using same

 #258
20120067563
2012-03-22

CASING FRIENDLY, SHEARABLE HARDBANDS AND SYSTEMS AND METHODS FOR SHEARING SAME

 #259
20120055679
2012-03-08

System and Method for Rescuing a Malfunctioning Subsea Blowout Preventer

 #260
20120043083
2012-02-23

Blowout preventer with shearing blades

 #261
20120043068
2012-02-23

Blowout preventer with shearing blades

 #262
20120006529
2012-01-12

Blowout preventers and methods of use

 #263
20120000647
2012-01-05

Blowout preventers for shearing a wellbore tubular

 #264
20110299933
2011-12-08

Method to stop wellbore fluid leakage from a spoolable wellbore intervention rod

 #265
20110226477
2011-09-22

Tubular severing system and method of using same

 #266
20110226476
2011-09-22

Tubular severing system and method of using same

 #267
20110226475
2011-09-22

System and method for severing a tubular

 #268
20110147623
2011-06-23

Shear block and blade interface and method

 #269
20110120734
2011-05-26

Ram blowout preventer stroke limiting and method

 #270
20110005743
2011-01-13

Mounts for blowout preventer bonnets and methods of use

 #271
20110000670
2011-01-06

Blowout preventers and methods of use

 #272
20100319906
2010-12-23

Shear seal blowout preventer

 #273
20100288504
2010-11-18

Subsea connection apparatus for a surface blowout preventer stack

 #274
20100218955
2010-09-02

Oil field system for through tubing rotary drilling

 #275
20100155071
2010-06-24

Subsea force generating device and method

 #276
20100152901
2010-06-17

Position data based method, interface and device for blowout preventer

 #277
20100071913
2010-03-25

Well bore control valve

 #278
20090127482
2009-05-21

HYDRAULIC RAMS

 #279
20080286534
2008-11-20

Blowout preventers and methods of use

 #280
20080257557
2008-10-23

Wellbore control device

 #281
20080196888
2008-08-21

Ram BOP position sensor

 #282
20080142746
2008-06-19

Mounts for blowout preventer bonnets and methods of use

 #283
20080121429
2008-05-29

Subsea drilling

 #284
20080105436
2008-05-08

Cutter Assembly

 #285
20080001107
2008-01-03

Ram BOP shear device

 #286
20070246215
2007-10-25

Blowout preventers and methods of use

 #287
20070102656
2007-05-10

Mounts for blowout preventer bonnets

 #288
20060283602
2006-12-21

Mounts for blowout preventer bonnets

 #289
20060254773
2006-11-16

Coiled tubing cutter

 #290
20060162936
2006-07-27

Mounts for blowout preventer bonnets

 #291
20060151175
2006-07-13

Lightweight and compact subsea intervention package and method

 #292
20060144586
2006-07-06

Shearing blind ram assembly with a fish pocket

 #293
20060113501
2006-06-01

Shear/seal ram assembly for a ram-type blowout prevention system

 #294
20060090899
2006-05-04

Ram BOP shear device

 #295
20060038147
2006-02-23

Unitary blade seal for a shearing blind ram in a ram type blowout preventer

 #296
20060021749
2006-02-02

Shearing sealing ram

 #297
20050263291
2005-12-01

BOP conversion apparatus

 #298
20050242308
2005-11-03

Blowout preventer and ram actuator

 #299
18425470
2025-02-18

Integrated valve blowout preventer for rig-less well interventions

 #300
17448405
2023-01-17

Smart blow off preventer shear ram system and methods