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IPC Subgroup
F21S 43/249

with two or more light sources being coupled into the light guide

Introduced: January 2018

Full Title

Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights > characterised by refractors, transparent cover plates, light guides or filters > Light guides > with two or more light sources being coupled into the light guide

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
LIGHTING
Subclass:
NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS

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