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IPC Subgroup
H02G 3/04

Protective tubing or conduits, e.g. cable ladders or cable troughs

Introduced: September 1968

Last revised: January 2006

Full Title

Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles > Details > Protective tubing or conduits, e.g. cable ladders or cable troughs

Classification Context

Section:
ELECTRICITY
Class:
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
Subclass:
INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES

Filing statistics

IPC H02G 3/04 belongs to the parent subclass H02G, which recorded 280,513 patent applications worldwide between 2013 and 2023. Annual filings grew from 12,300 in 2013 to 36,609 in 2023 (+198%), peaking at 39,527 applications in 2020. The most active applicants in class H02 are SGCC(STATE GRID CORPORATION OF CHINA) (54,496 applications), MITSUBISHI ELECTRIC CORPORATION (10,495 applications) and TOYOTA MOTOR CORPORATION (9,464 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

tubing for PROTECTION of electric cablesTUBE(S) for protecting electric cables

Top Applicants

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

  1. SGCC(STATE GRID CORPORATION OF CHINA) 54,496
  2. MITSUBISHI ELECTRIC CORPORATION JP 10,495
  3. TOYOTA MOTOR CORPORATION 9,464
  4. GUANGDONG POWER GRID CORPORATION 9,339
  5. ROBERT BOSCH DE 8,226
  6. SIEMENS DE 8,218
  7. DENSO CORPORATION 7,063
  8. MITSUBISHI ELECTRIC CORPORATION 6,619
  9. SAMSUNG ELECTRONICS COMPANY KR 5,826
  10. GREE ELECTRIC APPLIANCES 5,094