IPC Main Group
H02P 27/00 Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
Introduced: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
Additional Content
Two or more motor Control of synchronous motors or other dynamo-electric motors with electronic commutators, in dependence on the rotor position Controlling the speed or torque of DC motors Controlling stepping motors
2 direct subcodes
Child Classifications
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- H02P 27/02 using supply voltage with constant frequency and variable amplitude
- H02P 27/04 using variable-frequency supply voltage, e.g. inverter or converter supply voltage
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