ClassID:

217581

H02K31/00 - CPC Classification

Classification description:

Acyclic motors or generators, i.e. DC machines having drum or disc armatures with continuous current collectors

Sub-classes:
Recent Application in this class:
#1
20260039177
2026-02-05

ADDING HOMOPOLAR ROTORS IN SERIES WITHOUT SLIDING CONTACTS

#2
20250055389
2025-02-13

Voorhees Anti-Gravity Engine II

#3
20180273016
2018-09-27

Homopolar DC electromagnetic transmission and application system thereof

#4
20180191234
2018-07-05

HIGH SPEED TURBINE

#5
20170207592
2017-07-20

CONTACTLESS ELECTRICAL CURRENT TRANSFER APPARATUS WITH DIAMOND AND OTHER EMITTER STRUCTURES AND HOMOPOLAR MACHINES COMPRISING SAME

#6
20160118865
2016-04-28

Systems, methods, and apparatus for a homopolar generator charger with integral rechargeable battery

#7
20150111752
2015-04-23

High speed turbine

#8
20150097459
2015-04-09

Homopolar motor-generators

#9
20140265697
2014-09-18

Direct-current electric motor

#10
20140191696
2014-07-10

Rotating electric machine and method for controlling the rotating electric machine

#11
20140084716
2014-03-27

ROTATING ELECTRICAL MACHINE WITH SO-CALLED DOUBLE HOMOPOLAR STRUCTURE

#12
20140084714
2014-03-27

Homopolar motor-generator

#13
20140035529
2014-02-06

Systems, methods, and apparatus for a homopolar generator charger with integral rechargeable battery

#14
20130200741
2013-08-08

Hybrid homopolar integrated starter-generator

#15
20130175895
2013-07-11

SYSTEMS AND METHODS FOR PROVIDING BOTH ELECTRIC POWER AND MECHANICAL POWER, USING MAGNETICS, IN ACCORDANCE WITH ECE-THEORY

#16
20130173183
2013-07-04

Collector monitoring system

#17
20130099619
2013-04-25

Homopolar motor phase

#18
20130093401
2013-04-18

Systems, methods, and apparatus for a homopolar generator charger with integral rechargeable battery

#19
20120280589
2012-11-08

Multi-winding homopolar electric machine

#20
20110309708
2011-12-22

Multi-winding homopolar electric machine

#21
20110210636
2011-09-01

MP-T II machines

#22
20110089783
2011-04-21

High-efficiency permanent magnet motor

#23
20100295397
2010-11-25

Electromechanical Machine

#24
20100066216
2010-03-18

QUANTUM MOTOR

#25
20090295247
2009-12-03

Generator having first and second windings with same-direction electromotive forces

#26
20090045690
2009-02-19

DC HOMOPOLAR MOTOR/GENERATOR

#27
20090039824
2009-02-12

High power-density static-field ac conduction motor

#28
20080048513
2008-02-28

Multipolar-Plus Machines-Multipolar Machines With Reduced Numbers of Brushes

#29
20070216247
2007-09-20

AUTOMATIC MOTOR-GENERATOR CHARGER

#30
20070132331
2007-06-14

DC homopolar motor/generator