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PCE
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DIFF Subgroup
H05B 47/105

in response to determined parameters

Introduced: January 2020

Full Title

Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant > Controlling the light source > in response to determined parameters

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2020.

Child Classifications

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  • H05B 47/11 by determining the brightness or colour temperature of ambient light since 2020 IPC+CPC Available in IPC and CPC
  • H05B 47/135 by determining the type of light source being controlled (electrical parameters of light source being controlled H05B47/14) since 2020 IPC+CPC Available in IPC and CPC
  • H05B 47/14 by determining electrical parameters of the light source since 2020 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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