Patents-Review.com
ClassID:

217498 ⎘

H02K21/20 - CPC Classification

Classification description:

Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar machine

Recent Application in this class:
#1
20260100623
2026-04-09

BRUSHLESS MOTOR

 #2
20260031664
2026-01-29

RARE-EARTH-FREE PERMANENT MAGNET MOTOR

 #3
20250226711
2025-07-10

MECHANISM FOR MAINTAINING INTEGRITY OF PERMANENT MAGNETS IN DIRECTLY DRIVEN SEALLESS PUMPS AND TURBINES

 #4
20240429840
2024-12-26

MOTOR SAFETY CONTROL METHOD AND ROBOT FOR IMPLEMENTING THE SAME

 #5
20240283331
2024-08-22

ASSEMBLY FOR AN ELECTRIC MACHINE

 #6
20240213825
2024-06-27

STATOR FOR AN ELECTRIC MACHINE

 #7
20230384349
2023-11-30

GALVANOMETER MOTOR

 #8
20230307978
2023-09-28

Stator, fan, and cleaning device

 #9
20230238846
2023-07-27

NEW METHODOLOGY FOR IMPROVING ELECTRIC MOTOR EFFICIENCY

 #10
20230198330
2023-06-22

ROTATING ELECTRIC MACHINE

 #11
20220385159
2022-12-01

Generator device for the conversion of kinetic energy into electrical energy

 #12
20220385158
2022-12-01

Rotary electrical machine using time-invariant magnetic fields

 #13
20220278576
2022-09-01

Dual-rotor electrically efficient motor

 #14
20220216767
2022-07-07

Vacuum pump and magnetic-bearing-integrated motor

 #15
20220137399
2022-05-05

Galvanometer motor apparatus

 #16
20220094214
2022-03-24

Electric motor

 #17
20210135555
2021-05-06

Motor for air compressor

 #18
20210101295
2021-04-08

Tool changer and tool change system having the same

 #19
20210091620
2021-03-25

Single-phase brushless high-speed motor

 #20
20200274431
2020-08-27

Cogging-torque actuator

 #21
20200127546
2020-04-23

DC motor-dynamo

 #22
20190383210
2019-12-19

Method for operating an electric media-flow machine, control unit, media-flow machine, compressor and/or turbine

 #23
20190346013
2019-11-14

ENERGY STORAGE AND POWER OUTPUT FLYWHEEL SYSTEM

 #24
20190245422
2019-08-08

Brushless motor

 #25
20190199186
2019-06-27

Homopolar bearingless slice motors

 #26
20180166935
2018-06-14

Rotor for wound-rotor motor and wound-rotor motor having the same

 #27
20180145573
2018-05-24

Skewed rotor designs for hybrid homopolar electrical machines

 #28
20180145551
2018-05-24

Rotor for hybrid homopolar machine

 #29
20110241470
2011-10-06

Brushless electric machine

 #30
20110193441
2011-08-11

Rotating electric machine with homopolar double excitation

 #31
20110084565
2011-04-14

Brushless electric machine

 #32
20110043064
2011-02-24

Transverse flux rotary machine and switching device equipped with such a machine

 #33
20110038166
2011-02-17

HIGH EFFICIENCY HEAT DISSIPATING DEVICE FOR LAMPS

 #34
20110037336
2011-02-17

HOMOPOLAR MACHINE

 #35
20100314961
2010-12-16

MAGNETIC FLUX SWITCHING TYPE ELECTRIC GENERATOR USING SHIELDING MEMBER AS PERMANENT MAGNET

 #36
20090085412
2009-04-02

Brushless electric machine

 #37
20090066275
2009-03-12

Brushless electric machine and apparatus using the same

 #38
20090009010
2009-01-08

Low-noise, high-speed, high precision and high-thrust flux reversal motor for linear or rotary motion system

 #39
20050062352
2005-03-24

Unipolar transverse magnetic flux machine

 #40
18958430
2025-09-16

Planar vessel mixing using a brushless drive surrounding the reaction space