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CPC Subgroup
H02J 1/10

Parallel operation of DC sources

Full Title

Circuit arrangements for DC mains or DC distribution networks > Parallel operation of DC sources

Filing statistics

CPC H02J 1/10 belongs to the parent subclass H02J, which recorded 413,281 patent applications worldwide between 2013 and 2023. Annual filings grew from 20,350 in 2013 to 53,237 in 2023 (+162%). The most active applicants in class H02 are SGCC(STATE GRID CORPORATION OF CHINA) (24,515 applications), MITSUBISHI ELECTRIC CORPORATION (11,346 applications) and SIEMENS (9,026 applications).

Source: EPO PATSTAT, worldwide filings

6 direct subcodes

Child Classifications

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  • H02J 1/102 being switching converters (H02J1/108, H02J1/12 take precedence)
  • H02J 1/106
  • H02J 1/108 having arrangements for blocking reverse current flow, e.g. using diodes (H02J1/12 takes precedence)
  • H02J 1/109
  • H02J 1/12 Parallel operation of DC sources having power converters with further DC sources without power converters
  • H02J 1/122

Top Applicants

Top 10 applicants by patent filingsfor class H02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 24,515
  2. MITSUBISHI ELECTRIC CORPORATION JP 11,346
  3. SIEMENS DE 9,026
  4. ROBERT BOSCH DE 9,005
  5. SAMSUNG ELECTRONICS COMPANY KR 6,729
  6. GUANGDONG POWER GRID CORPORATION 5,740
  7. DENSO CORPORATION JP 5,077
  8. LG ELECTRONICS KR 5,041
  9. LG INNOTEK COMPANY KR 4,442
  10. TOYOTA MOTOR CORPORATION 4,349