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CPC Subgroup
F21V 9/35

at focal points, e.g. of refractors, lenses, reflectors or arrays of light sources

Full Title

Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters (coloured shades F21V1/00; elements characterised by cooling arrangements F21V29/502) > Elements containing photoluminescent material distinct from or spaced from the light source (shades F21V1/17; globes, bowls or cover glasses F21V3/08, F21V3/12; refractors F21V5/10; reflectors F21V7/26, F21V7/30; elements with provision for controlling the spectral properties or intensity F21V9/40) > characterised by the arrangement of the photoluminescent material > at focal points, e.g. of refractors, lenses, reflectors or arrays of light sources

Filing statistics

CPC F21V 9/35 belongs to the parent subclass F21V, which recorded 193,056 patent applications worldwide between 2013 and 2023. Annual filings declined from 15,472 in 2013 to 11,369 in 2023 (-27%), peaking at 23,632 applications in 2017. The most active applicants in class F21 are VALEO VISION (2,820 applications), SIGNIFY HOLDING (2,374 applications) and KOITO MANUFACTURING COMPANY (1,890 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

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

  1. VALEO VISION FR 2,820
  2. SIGNIFY HOLDING NL 2,374
  3. KOITO MANUFACTURING COMPANY JP 1,890
  4. KOITO MANUFACTURING COMPANY 1,722
  5. LG INNOTEK COMPANY KR 1,624
  6. OSRAM DE 1,507
  7. LG ELECTRONICS KR 1,458
  8. PANASONIC INTELLECTUAL PROPERTY JP 1,433
  9. ZUMTOBEL LIGHTING AT 1,349
  10. PANASONIC INTELLECTUAL PROPERTY 1,275