using discharge tubes with control electrode or semiconductor devices with control electrode (H02M3/07 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: using discharge tubes with control electrode or semiconductor devices with control electrode

CPC: using discharge tubes with control electrode or semiconductor devices with control electrode (H02M3/07 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Conversion of DC power input into DC power output > without intermediate conversion into AC > by static converters > using discharge tubes with control electrode or semiconductor devices with control electrode

CPC:

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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H02M 3/125 using devices of a thyratron or thyristor type requiring extinguishing means since 1974 IPC+CPC Available in IPC and CPC
H02M 3/145 using devices of a triode or transistor type requiring continuous application of a control signal since 1974 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