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CPC Subgroup
H02B 13/045

Details of casing, e.g. gas tightness

Full Title

Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle (switchgear having carriage withdrawable for isolation H02B11/00) > with metal casing > Gas-insulated switchgear > Details of casing, e.g. gas tightness

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