IPC Subgroup
H02K 15/12 Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
Introduced: September 1968
Last revised: January 2025
Full Title
Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines > Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- DYNAMO-ELECTRIC MACHINES
Related Keywords
HEATING of electric machine windings
4 direct subcodes
Child Classifications
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- H02K 15/121 of cores
- H02K 15/122 of windings
- H02K 15/123 of casings or enclosures
- H02K 15/125 Heating or drying of machines in operational state, e.g. standstill heating
Top Applicants
Top 10 applicants by patent filingsfor 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