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PCE
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CPC Subgroup
G09F 13/42

with light sources activated by non-visible radiation (cathode ray image or pattern display tubes H01J31/10; lamps with luminescent screens excited by cathode rays H01J63/06)

Full Title

Illuminated signs; Luminous advertising (G09F9/00, G09F11/00 take precedence; control of displays in general using static means to present variable information G09G) > with light sources activated by non-visible radiation (cathode ray image or pattern display tubes H01J31/10; lamps with luminescent screens excited by cathode rays H01J63/06)

Top Applicants

Top 10 applicants by patent filingsfor class G09, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG DISPLAY KR 22,477
  2. BOE TECHNOLOGY GROUP COMPANY CN 16,016
  3. BOE TECHNOLOGY GROUP COMPANY 12,918
  4. LG DISPLAY COMPANY KR 12,599
  5. SAMSUNG ELECTRONICS COMPANY KR 12,009
  6. SAMSUNG DISPLAY 6,252
  7. SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 4,410
  8. SONY CORPORATION JP 3,965
  9. LG ELECTRONICS KR 3,901
  10. LG DISPLAY COMPANY 3,705