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IPC Subgroup
F21Y 115/2

Electroluminescent [EL] light sources

Introduced: January 2016

Full Title

Light-generating elements of semiconductor light sources > Electroluminescent [EL] light sources

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
LIGHTING
Subclass:
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES , , and , RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

Filing statistics

IPC F21Y 115/2 belongs to the parent subclass F21Y, which recorded 269,193 patent applications worldwide between 2013 and 2023. Annual filings declined from 22,195 in 2013 to 18,660 in 2023 (-16%), peaking at 32,832 applications in 2017. The most active applicants in class F21 are PANASONIC INTELLECTUAL PROPERTY (3,883 applications), VALEO VISION (2,797 applications) and KOITO MANUFACTURING COMPANY (2,531 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

Top 10 applicants by patent filingsfor class F21, 2013–2023, worldwide · Source: EPO PATSTAT

  1. PANASONIC INTELLECTUAL PROPERTY 3,883
  2. VALEO VISION FR 2,797
  3. KOITO MANUFACTURING COMPANY 2,531
  4. OPPLE LIGHTING COMPANY 2,343
  5. SIGNIFY HOLDING NL 2,275
  6. TOSHIBA LIGHTING & TECHNOLOGY CORPORATION 1,982
  7. KOITO MANUFACTURING COMPANY JP 1,766
  8. LG INNOTEK COMPANY KR 1,651
  9. SUZHOU OPPLE LIGHTING COMPANY 1,633
  10. MITSUBISHI ELECTRIC CORPORATION 1,591