ClassID:

217421

H02K16/005 - CPC Classification

Classification description:

Machines with more than one rotor or stator Machines with only rotors, e.g. counter-rotating rotors

Recent Application in this class:
#1
20260139657
2026-05-21

METHOD AND DEVICE FOR CONVERTING WIND ENERGY INTO ELECTRICAL ENERGY

#2
20250219484
2025-07-03

STATORLESS ELECTROMECHANICAL DEVICE AND METHOD THEREOF

#3
20240392864
2024-11-28

INERTIA FLYWHEEL ASSEMBLY AND SYSTEM THEREOF

#4
20240389551
2024-11-28

WATER DISPENSER FOR PETS

#5
20240348136
2024-10-17

SYSTEM AND METHOD FOR EXPLOITING REACTION FORCE

#6
20240277998
2024-08-22

ROTOR BEARING SYSTEM

#7
20230216386
2023-07-06

Counter-rotating alternator arrangement

#8
20230102659
2023-03-30

Rotor, rotary electric machine, and drive apparatus

#9
20220161621
2022-05-26

Energy conversion device and related methods

#10
20220140710
2022-05-05

Counter-rotating axial electric motor assembly

#11
20220088803
2022-03-24

Generating electric power for a robotic end effector

#12
20220060098
2022-02-24

Power transmission system using magnets

#13
20210394623
2021-12-23

Statorless electrical generator system driven by a flowing fluid

#14
20210346680
2021-11-11

Rotor bearing system

#15
20210323395
2021-10-21

Power transmission device for hybrid vehicle

#16
20200316447
2020-10-08

Line dispensing device with Eddy current braking for use with climbing and evacuation

#17
20200204039
2020-06-25

Metallurgical device with self-powered sensing

#18
20200155874
2020-05-21

Braking mechanisms

#19
20200028429
2020-01-23

Electric generator with a rotational resistance avoidance feature

#20
20190319498
2019-10-17

STATOR AND MOTOR HAVING SAME

#21
20190312496
2019-10-10

Automatic torque-adjustable speed-changing motor for electric pedicab

#22
20190123626
2019-04-25

Electric motor generator system with a plurality of magnet portions abutting an inwardly facing surface of a shaft

#23
20180337583
2018-11-22

Dynamic electrical generator and its associated method of operation

#24
20180313328
2018-11-01

Wind Power Generation Device

#25
20180269760
2018-09-20

Electrical machine

#26
20180248424
2018-08-30

Magnetic propulsion and electrical generation system

#27
20180221743
2018-08-09

LINE DISPENSING DEVICE WITH EDDY CURRENT BRAKING FOR USE WITH CLIMBING AND EVACUATION

#28
20180212500
2018-07-26

Magnetic coupling

#29
20180093576
2018-04-05

Electromechanical integrated machine for electrified vehicles

#30
20180077759
2018-03-15

Heat generation apparatus using permanent magnets

#31
20180076689
2018-03-15

Counter rotating electrical generator

#32
20180006544
2018-01-04

Power transmission device

#33
20170333735
2017-11-23

Personal escape device with eddy current braking

#34
20170274261
2017-09-28

Braking mechanisms

#35
20170222537
2017-08-03

Winding-type permanent magnet coupling transmission device

#36
20170179775
2017-06-22

STATOR AND MOTOR HAVING SAME

#37
20170117783
2017-04-27

Fluid driven electric generator

#38
20160305447
2016-10-20

Rotating diffuser pump

#39
20160230744
2016-08-11

WIND TURBINE WITH DUAL BLADE ASSEMBLIES

#40
20160226354
2016-08-04

APPARATUS COMPRISING COUNTER-ROTATIONAL MECHANISMS AND RELATED METHODS TO CONVEY CURRENT

#41
20160168964
2016-06-16

Magnetic coupling unit for submersible well pumps

#42
20160167500
2016-06-16

Electric engine arrangement

#43
20160156254
2016-06-02

PROGRESSIVE MAGNETIC ROTATION MOTOR

#44
20160126817
2016-05-05

Automobile automatic transmission

#45
20160020653
2016-01-21

Motor

#46
20150303779
2015-10-22

AUXILIARY POWER APPARATUS

#47
20150295481
2015-10-15

Bi-rotational generator

#48
20150240778
2015-08-27

Submersible power generator

#49
20150207377
2015-07-23

ELECTRICAL INDUCTION MOTOR HAVING A ROTOR WITH A BEVEL GEAR ARRANGEMENT FOR DRIVING A PAIR OF OPPOSITE GEAR RINGS

#50
20150196820
2015-07-16

Line dispensing device with eddy current braking for use with climbing and evacuation

#51
20150180313
2015-06-25

ROTATING ELECTRIC MACHINE

#52
20150167631
2015-06-18

High efficiency wind turbine

#53
20150130316
2015-05-14

Variable speed electro-mechanical drive

#54
20150090505
2015-04-02

Structural electric tandem axle module

#55
20140375158
2014-12-25

Braking mechanisms

#56
20140048639
2014-02-20

Line dispensing device with eddy current braking for use with climbing and evacuation

#57
20130301244
2013-11-14

Power tool with light for illuminating workpiece

#58
20130228654
2013-09-05

Electrical generator for rotating structure

#59
20130200618
2013-08-08

HIGH EFFICIENCY WIND TURBINE

#60
20130175893
2013-07-11

Motor vehicle drive unit

#61
20130154404
2013-06-20

Electric damper for a motor vehicle

#62
20130057189
2013-03-07

REVOLUTION STABILIZATION CONTROL (RSC) SYSTEM

#63
20130038069
2013-02-14

DISK-SHAPED COAXIAL INVERSION GENERATOR AND WIND DRIVEN GENERATING EQUIPMENT INCLUDING THE SAME

#64
20130003358
2013-01-03

Power tool with light for illuminating a workpiece

#65
20120286610
2012-11-15

Increased efficiency dual rotational electric motor/generator

#66
20120283061
2012-11-08

Electric drive system

#67
20120212084
2012-08-23

High performance power generation apparatus

#68
20120206004
2012-08-16

Dual-mode counter-rotating-to-traditional electric motor and system

#69
20120068472
2012-03-22

Electrical machines, wind turbines, and methods for operating an electrical machine

#70
20120055740
2012-03-08

Braking mechanisms

#71
20120019087
2012-01-26

Magnetic Electron Exciter and Methods

#72
20110309619
2011-12-22

Generator with falling stator

#73
20110266903
2011-11-03

COAXIAL INVERSION CORELESS GENERATOR

#74
20110221191
2011-09-15

Mechanical regulation of electrical frequency in an electrical generation system

#75
20110188232
2011-08-04

Power tool with a light for illuminating a workpiece

#76
20110025157
2011-02-03

SYSTEM OF ELECTRICAL GENERATION FOR COUNTER-ROTATING OPEN-ROTOR BLADE DEVICE

#77
20100327681
2010-12-30

Modular power source for transmitter on boring machine

#78
20100327582
2010-12-30

Generator with falling stator

#79
20100314877
2010-12-16

Gas turbine bleed energy recovery via counter rotating generator

#80
20100308149
2010-12-09

Line dispensing device with eddy current braking for use with climbing and evacuation

#81
20100236849
2010-09-23

Brushless counter-rotating electric apparatus and system

#82
20100230967
2010-09-16

WIND POWER GENERATOR

#83
20100225190
2010-09-09

Generator

#84
20090289516
2009-11-26

Electrical generator arrangement

#85
20090058090
2009-03-05

Plant, generator and propeller element for generating energy from water currents

#86
20090015011
2009-01-15

Device for producing electrical power in a two-spool gas turbine engine

#87
20080252079
2008-10-16

Generator Device with Both Driving Units

#88
20080226450
2008-09-18

Turbine with coaxial sets of blades

#89
20080224475
2008-09-18

Power generation

#90
20080211236
2008-09-04

Contra rotating generator

#91
20080136276
2008-06-12

Motor- or a generator-related arrangement

#92
20080006023
2008-01-10

Turbine engine with an alternator and method for transmitting movement to an alternator

#93
20070126240
2007-06-07

Generator

#94
20070018462
2007-01-25

Generator

#95
20060279153
2006-12-14

Electrodynamic machine

#96
20060273686
2006-12-07

Hub motors

#97
20060163963
2006-07-27

Counter rotating generator

#98
20060138732
2006-06-29

Vehicle stabilizer system

#99
20060088417
2006-04-27

Two-outlet electromechanical motor

#100
20060070535
2006-04-06

Apparatus and method for generating an electric current for a press cylinder

#101
20050275359
2005-12-15

Relative drive device

#102
20050236841
2005-10-27

Plant, generator and propeller element for generating energy from watercurrents

#103
20050134048
2005-06-23

GENERATING APPARATUS

#104
20050104466
2005-05-19

Electrodynamic machine

#105
19181174
2025-12-23

Bidirectional rotor device for electromechanical energy conversion and method thereof

#106
15856567
2019-12-31

Progressive magnetic rotation motor

#107
14719077
2016-09-27

Magnetic propulsion system

#108
14615091
2017-11-21

Electrical generator or motor with variable coil winding patterns exhibiting multiple wires incorporated into a plurality of independent three stage coil configurations and incorporating a belt drive arrangement exhibiting first and second rotating pully wheels in combination with opposite belt rotating magnet and coil supporting components for providing increased power output

#109
14608974
2018-02-27

Electrical generator or motor with variable coil winding patterns exhibiting multiple wires incorporated into a plurality coil configurations defined around a rotor and incorporating a gearbox arrangement exhibiting oppositely driven rotor and stator gears configured with multi-tiered reversing gears exhibiting both straight and helical patterns and for varying turning ratios for establishing either of acceleration or deceleration aspects for increased power output

#110
14603050
2018-02-27

Electrical induction motor with reconfigured rotor mounted commutators for receiving an armature current from a stator mounted brush component along with a reversing gear arrangement for driving a pair of opposite gear rings