IPC Subgroup
H02M 7/217 using semiconductor devices only
Introduced: July 1974
Last revised: January 2006
Full Title
Conversion of AC power input into DC power output; Conversion of DC power input into AC power output > Conversion of AC power input into DC power output without possibility of reversal > by static converters > using discharge tubes with control electrode or semiconductor devices with control electrode > using devices of a triode or transistor type requiring continuous application of a control signal > using semiconductor devices only
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3 direct subcodes
Child Classifications
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- H02M 7/219 in a bridge configuration
- H02M 7/23 arranged for operation in parallel
- H02M 7/25 arranged for operation in series, e.g. for multiplication of 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