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PCE
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CPC Subgroup
G04G 9/10

by controlling light sources, e.g. electroluminescent diodes

Full Title

Visual time or date indication means > by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques > by controlling light sources, e.g. electroluminescent diodes

3 direct subcodes

Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor class G04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. THE SWATCH GROUP RESEARCH AND DEVELOPMENT CH 1,705
  2. ETA SA MANUFACTURE HORLOGERE SUISSE CH 1,443
  3. SAMSUNG ELECTRONICS COMPANY KR 1,104
  4. APPLE US 1,038
  5. SEIKO EPSON CORPORATION 875
  6. NIVAROX-FAR CH 781
  7. CASIO COMPUTER COMPANY 734
  8. MONTRES BREGUET CH 715
  9. SEIKO EPSON CORPORATION JP 715
  10. OMEGA CH 555