Patents-Review.com
ClassID:

142179 ⎘

F03B13/02 - CPC Classification

Classification description:

Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus ; Power stations or aggregates Adaptations for drilling wells

Recent Application in this class:
#1
20260110221
2026-04-23

JOINT FOR DOWNHOLE MOTOR

 #2
20260098513
2026-04-09

FLOW-THROUGH GENERATOR WITH MAGNETIC COUPLING FOR PIPELINE POWER GENERATION

 #3
20260009370
2026-01-08

A System And Method For Fluid Gravitational Energy For Power-Generation In Sub Surface Oil, Water Injection And Disposal Wells

 #4
20250230788
2025-07-17

Apparatus and Method for Generating Electricity from the Natural Flow of a Gas Well

 #5
20250188900
2025-06-12

Flexible Turbine For Power Generation In Straight Pipe

 #6
20250179876
2025-06-05

Downhole Reamer with Rotating Sleeve

 #7
20240254834
2024-08-01

HYDRAULIC MOTOR

 #8
20240167366
2024-05-23

MAGNETIC COUPLING TO TRANSFER TORQUE ACROSS HERMETIC CHAMBER WALLS

 #9
20240093665
2024-03-21

PUMP AND REVERSIBLE PUMP-TURBINE

 #10
20240044219
2024-02-08

REDUCTION OF EQUIVALENT CIRCULATING DENSITY IN WELL OPERATIONS

 #11
20230407716
2023-12-21

AUTONOMOUS TRACTOR USING COUNTER FLOW-DRIVEN PROPULSION

 #12
20230203919
2023-06-29

Turbine current generator

 #13
20230131841
2023-04-27

Adjustable fins on a turbine

 #14
20230123425
2023-04-20

Improved Pump and Reversible Pump-Turbine

 #15
20230053504
2023-02-23

Downhole turbine for managed pressure drilling

 #16
20210246765
2021-08-12

Active alternator control in a downhole tool string

 #17
20210102444
2021-04-08

Downhole power generation system and optimized power control method thereof

 #18
20210095546
2021-04-01

Power-generating apparatus for downhole tubulars

 #19
20200392814
2020-12-17

MODULAR SKID UNIT WITH INTEGRATED FUEL SUPPLY AND RETURN MANIFOLD

 #20
20200284113
2020-09-10

Digitally controlled agitation switch smart vibration assembly for lateral well access

 #21
20200056458
2020-02-20

Downhole power generation system and method

 #22
20190368331
2019-12-05

Autonomous tractor using counter flow-driven propulsion

 #23
20190368290
2019-12-05

Autonomous tractor using counter flow-driven propulsion

 #24
20190195021
2019-06-27

Hydraulic motor for a drilling system

 #25
20190115758
2019-04-18

Electrical power generation and distribution system with power recovery and regeneration

 #26
20180266181
2018-09-20

STIFFNESS TUNING AND DYNAMIC FORCE BALANCING ROTORS OF DOWNHOLE DRILLING MOTORS

 #27
20180245403
2018-08-30

Downhole turbine with an adjustable shroud

 #28
20180163514
2018-06-14

Active alternator control in a downhole tool string

 #29
20180149133
2018-05-31

Well-bore generator

 #30
20180135434
2018-05-17

Turbines and methods of generating electricity

 #31
20180038203
2018-02-08

Turbine-generator-actuator assembly for rotary steerable tool using a gearbox

 #32
20170342778
2017-11-30

Downhole tool surfaces configured to reduce drag forces and erosion during exposure to fluid flow

 #33
20170292361
2017-10-12

System and method for extracting gas from a well

 #34
20170122033
2017-05-04

Mud motor assembly

 #35
20160319656
2016-11-03

Downhole turbine tachometer

 #36
20160230462
2016-08-11

Nutating fluid-mechanical energy converter to power wellbore drilling

 #37
20160195087
2016-07-07

Motor control system

 #38
20160186747
2016-06-30

Method and apparatus to manufacture a progressive cavity motor or pump

 #39
20160177773
2016-06-23

Apparatus for extending the flow range of turbines

 #40
20160166865
2016-06-16

Hole-drilling and wall-penetrating fire extinguishing device

 #41
20160160565
2016-06-09

Downhole mud motor

 #42
20160102499
2016-04-14

Improved Turbine

 #43
20160017660
2016-01-21

Dual-type speed control mechanism for a turbine

 #44
20150361766
2015-12-17

Drilling turbine power generation

 #45
20150354280
2015-12-10

Progressive cavity based control system

 #46
20150326074
2015-11-12

Electric machine including a stator defining a flow channel

 #47
20150308262
2015-10-29

Turbine for transmitting electrical data

 #48
20150252677
2015-09-10

Flow rate responsive turbine blades and related methods

 #49
20150211481
2015-07-30

Nutating fluid-mechanical energy converter

 #50
20150167389
2015-06-18

Mud motor

 #51
20150167388
2015-06-18

Mud motor

 #52
20150167387
2015-06-18

Mud motor

 #53
20150167386
2015-06-18

Method of using a mud motor

 #54
20150068298
2015-03-12

Apparatus for downhole power generation

 #55
20150060144
2015-03-05

TURBINE BLADE FOR TURBODRILLS

 #56
20140262524
2014-09-18

Downhole turbine motor and related assemblies

 #57
20140251592
2014-09-11

Rotating magnetic field downhole power generation device

 #58
20140103662
2014-04-17

Power generation in a tubular structure by way of electromagnetic induction

 #59
20140001893
2014-01-02

Electric fluid pump

 #60
20130277116
2013-10-24

Mud motor with integrated percussion tool and drill bit

 #61
20130195695
2013-08-01

HOLLOW ROTOR MOTOR AND SYSTEMS COMPRISING THE SAME

 #62
20130168965
2013-07-04

System and method for downhole geothermal electrical power generation

 #63
20130113213
2013-05-09

Power generation at a subsea location

 #64
20130056984
2013-03-07

Downhole power generation by way of electromagnetic induction

 #65
20120319409
2012-12-20

Retractable power turbine and method thereof

 #66
20120306193
2012-12-06

COMBINATION COUPLING

 #67
20120228877
2012-09-13

Systems and methods of energy harvesting with positive displacement motor

 #68
20120139250
2012-06-07

Apparatus for downhole power generation

 #69
20120114274
2012-05-10

Bearing assembly for a downhole motor

 #70
20120091711
2012-04-19

Apparatus and method for producing electric power from injection of water into a downhole formation

 #71
20110315451
2011-12-29

DRIVE SYSTEM FOR A DOWNHOLE TOOL

 #72
20110277456
2011-11-17

Hydraulically-powered compressor

 #73
20110084490
2011-04-14

ELECTRICAL MUDLINE SYSTEM

 #74
20110057449
2011-03-10

Electromagnetic harvesting of fluid oscillations for downhole power sources

 #75
20100314172
2010-12-16

SHAFT CATCH

 #76
20100307833
2010-12-09

Jet turbodrill

 #77
20100237624
2010-09-23

Impulse rotor generator

 #78
20100212966
2010-08-26

Downhole tool actuation

 #79
20100212965
2010-08-26

Downhole tool actuation

 #80
20100183430
2010-07-22

Turbine for driving a generator in a drill string

 #81
20100133011
2010-06-03

Drill string with modular motor units

 #82
20100122850
2010-05-20

Systems and methods for protecting drill blades in high speed turbine drills

 #83
20100116554
2010-05-13

Turbo-gear for speedy drilling wells

 #84
20090139769
2009-06-04

Apparatus and method for a hydraulic diaphragm downhole mud motor

 #85
20090104021
2009-04-23

Turbine for power generation in a drill string

 #86
20080277941
2008-11-13

Generation of Electrical Power From Fluid Flows

 #87
20080240909
2008-10-02

Bearing arrangement for a turbine rotor of a drill string turbine

 #88
20080029304
2008-02-07

Mandrel and bearing assembly for downhole drilling motor

 #89
20070196205
2007-08-23

Method and apparatus for extending flow range of a downhole turbine

 #90
20070044954
2007-03-01

Downhole motor locking assembly and method

 #91
20060113803
2006-06-01

Method and apparatus for generating electrical energy downhole

 #92
20060090936
2006-05-04

Turbodrill with asymmetric stator and rotor vanes

 #93
18531311
2025-06-10

Flexible turbine for power generation in straight pipe

 #94
18388247
2025-02-11

Downhole reamer with rotating sleeve

 #95
18113799
2023-12-05

System and method of controlling single or dual pump operation