IPC Main Group
H02K 15/00 Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
Introduced: September 1968
Last revised: January 2025
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- DYNAMO-ELECTRIC MACHINES
Filing statistics
IPC H02K 15/00 belongs to the parent subclass H02K, which recorded 426,168 patent applications worldwide between 2013 and 2023. Annual filings grew from 23,896 in 2013 to 46,626 in 2023 (+95%), peaking at 54,100 applications in 2020. The most active applicants in class H02 are SGCC(STATE GRID CORPORATION OF CHINA) (54,496 applications), MITSUBISHI ELECTRIC CORPORATION (10,495 applications) and TOYOTA MOTOR CORPORATION (9,464 applications).
Source: EPO PATSTAT, worldwide filings
Related Keywords
ASSEMBLING of dynamo-electric machines
18 direct subcodes
Child Classifications
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- H02K 15/02 of stator or rotor bodies
- H02K 15/04 of windings prior to their mounting into the machines
- H02K 15/06 Embedding prefabricated windings in the machines
- H02K 15/08 Forming windings by laying conductors into or around core parts
- H02K 15/1 Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes
- H02K 15/12 Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
- H02K 15/13 Applying slot closure means in the cores; Manufacture of slot closure means
- H02K 15/14 Casings; Enclosures; Supports
- H02K 15/16 Centring rotors within the stators
- H02K 15/2 Shaping or compacting conductors or winding heads after the installation of the winding in the cores or machines; Applying fastening means on winding heads
- H02K 15/3 Manufacture of winding connections
- H02K 15/4 Assembling dynamo-electric machines
- H02K 15/5 Disassembling, repairing or modifying dynamo-electric machines
- H02K 15/6 Hoisting or moving dynamo-electric machines
- H02K 15/7 Cleaning dynamo-electric machines
- H02K 15/8 Manufacturing lines specially adapted for dynamo-electrical machines, e.g. feeding or unloading
- H02K 15/9 Positioning or clamping dynamo-electric machines, e.g. jigs
- H02K 15/95 Installation of current collectors, e.g. commutators, slip-rings or brushes
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