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CPC Subgroup
H05B 39/10

Circuits providing for substitution of the light source in case of its failure

Full Title

Circuit arrangements or apparatus for operating incandescent light sources (structurally associated with the incandescent lamps H01K1/62) > Circuits providing for substitution of the light source in case of its failure

Filing statistics

CPC H05B 39/10 belongs to the parent subclass H05B, which recorded 230,577 patent applications worldwide between 2013 and 2023. Annual filings declined from 18,581 in 2013 to 16,528 in 2023 (-11%), peaking at 25,315 applications in 2017. The most active applicants in class H05 are SAMSUNG ELECTRONICS COMPANY (9,981 applications), SAMSUNG DISPLAY (5,041 applications) and LG ELECTRONICS (4,742 applications).

Source: EPO PATSTAT, worldwide filings

1 direct subcode

Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor class H05, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 9,981
  2. SAMSUNG DISPLAY KR 5,041
  3. LG ELECTRONICS KR 4,742
  4. PHILIP MORRIS PRODUCTS CH 4,411
  5. PANASONIC INTELLECTUAL PROPERTY JP 3,915
  6. PANASONIC INTELLECTUAL PROPERTY 3,471
  7. SAMSUNG ELECTRO-MECHANICS COMPANY KR 3,210
  8. MURATA MANUFACTURING COMPANY JP 3,191
  9. FUJI JP 2,987
  10. SIGNIFY HOLDING NL 2,907