DIFF Main Group
H02K 23/00 DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
Introduced: September 1968
IPC and CPC are identically structured here. All 13 subcodes exist in both systems.
Child Classifications
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- H02K 23/40 characterised by the arrangement of the magnet circuits +1 CPC IPC+CPC Available in IPC and CPC
- H02K 23/52 Motors acting also as generators, e.g. starting motors used as generators for ignition or lighting IPC+CPC Available in IPC and CPC
- H02K 23/56 Motors or generators having iron cores separated from armature winding IPC+CPC Available in IPC and CPC
- H02K 23/60 Motors or generators having rotating armatures and rotating excitation field IPC+CPC Available in IPC and CPC
- H02K 23/62 Motors or generators with stationary armatures and rotating excitation field IPC+CPC Available in IPC and CPC
- H02K 23/64 Motors specially adapted for running on DC or AC by choice IPC+CPC Available in IPC and CPC
- H02K 23/66 Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches IPC+CPC Available in IPC and CPC
- H02K 23/68 Structural association with auxiliary mechanical devices, e.g. with clutches or brakes IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H02,2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 54,496
- MITSUBISHI ELECTRIC CORPORATION JP 10,495
- TOYOTA MOTOR CORPORATION 9,464
- GUANGDONG POWER GRID CORPORATION 9,339
- ROBERT BOSCH DE 8,226
- SIEMENS DE 8,218
- DENSO CORPORATION 7,063
- MITSUBISHI ELECTRIC CORPORATION 6,619
- SAMSUNG ELECTRONICS COMPANY KR 5,826
- GREE ELECTRIC APPLIANCES 5,094
Top Applicants (CPC)
Class H02,2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 24,515
- MITSUBISHI ELECTRIC CORPORATION JP 11,346
- SIEMENS DE 9,026
- ROBERT BOSCH DE 9,005
- SAMSUNG ELECTRONICS COMPANY KR 6,729
- GUANGDONG POWER GRID CORPORATION 5,740
- DENSO CORPORATION JP 5,077
- LG ELECTRONICS KR 5,041
- LG INNOTEK COMPANY KR 4,442
- TOYOTA MOTOR CORPORATION 4,349