Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
G04F 10/10

by measuring electric or magnetic quantities changing in proportion to time

Full Title

Apparatus for measuring unknown time intervals by electric means > by measuring electric or magnetic quantities changing in proportion to time

Filing statistics

CPC G04F 10/10 belongs to the parent subclass G04F, which recorded 6,313 patent applications worldwide between 2013 and 2023. Annual filings grew from 460 in 2013 to 558 in 2023 (+21%), peaking at 667 applications in 2021. The most active applicants in class G04 are THE SWATCH GROUP RESEARCH AND DEVELOPMENT (1,705 applications), ETA SA MANUFACTURE HORLOGERE SUISSE (1,443 applications) and SAMSUNG ELECTRONICS COMPANY (1,104 applications).

Source: EPO PATSTAT, worldwide filings

1 direct subcode

Child Classifications

Navigate with arrow keys, Enter to open

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