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DIFF Subgroup
G04C 23/02

Constructional details

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals > Constructional details

CPC:

Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals (if restricted to producing acoustic time signals by electrical means G04C21/00) > Constructional details

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

Child Classifications

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  • G04C 23/04 Housings, supports, shielding, or similar stationary parts IPC+CPC Available in IPC and CPC
  • G04C 23/06 Driving or regulating means IPC+CPC Available in IPC and CPC
  • G04C 23/08 Programming means IPC+CPC Available in IPC and CPC
  • G04C 23/10 for actuating any element which operates, or initiates the operation of, the device concerned IPC+CPC Available in IPC and CPC
  • G04C 23/12 Electric circuitry IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G04,2013–2023, worldwide · Source: EPO PATSTAT

  1. THE SWATCH GROUP RESEARCH AND DEVELOPMENT CH 1,570
  2. ETA SA MANUFACTURE HORLOGERE SUISSE CH 1,409
  3. CASIO COMPUTER COMPANY 1,172
  4. SEIKO EPSON CORPORATION 1,100
  5. SAMSUNG ELECTRONICS COMPANY KR 768
  6. NIVAROX-FAR CH 750
  7. MONTRES BREGUET CH 707
  8. APPLE US 706
  9. SEIKO EPSON CORPORATION JP 648
  10. CITIZEN WATCH COMPANY 578

Top Applicants (CPC)

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