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IPC Main Group
H05B 47/00

Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant

Introduced: January 2020

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Subclass:
ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

Filing statistics

IPC H05B 47/00 belongs to the parent subclass H05B, which recorded 317,963 patent applications worldwide between 2013 and 2023. Annual filings declined from 28,029 in 2013 to 23,921 in 2023 (-15%), peaking at 32,442 applications in 2017. The most active applicants in class H05 are SAMSUNG ELECTRONICS COMPANY (7,201 applications), PANASONIC INTELLECTUAL PROPERTY (6,828 applications) and SEMICONDUCTOR ENERGY LABORATORY COMPANY (3,988 applications).

Source: EPO PATSTAT, worldwide filings

Additional Content

Circuit arrangements or apparatus for operating incandescent light sources and not adapted to a particular application Circuit arrangements or apparatus for igniting or operating discharge lamps Circuit arrangements for operating light emitting diodes [LED] Circuit arrangements for light sources using a charge of combustible material

2 direct subcodes

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 7,201
  2. PANASONIC INTELLECTUAL PROPERTY 6,828
  3. SEMICONDUCTOR ENERGY LABORATORY COMPANY 3,988
  4. LG ELECTRONICS KR 3,564
  5. PANASONIC INTELLECTUAL PROPERTY JP 3,533
  6. SAMSUNG DISPLAY KR 3,310
  7. FUJI JP 2,870
  8. SAMSUNG ELECTRO-MECHANICS COMPANY KR 2,675
  9. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 2,665
  10. MURATA MANUFACTURING COMPANY JP 2,634