CPC Main Group
H02J 1/00 Circuit arrangements for DC mains or DC distribution networks
8 direct subcodes
Child Classifications
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- H02J 1/002 using intermediate DC-AC-DC conversion
- H02J 1/02 Arrangements for reducing harmonics or ripples
- H02J 1/04 Current-controlled supply systems, e.g. constant-current supply systems
- H02J 1/06 Two-wire DC power distribution systems
- H02J 1/08 Three-wire DC power distribution systems; Systems having more than three wires
- H02J 1/10 Parallel operation of DC sources
- H02J 1/14 Balancing load and power generation in DC networks
Top Applicants
Top 10 applicants by patent filingsfor 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