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DIFF Main Group
G04G 21/00

Input or output devices integrated in time-pieces

Introduced: January 2010

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2010.

Child Classifications

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  • G04G 21/04 using radio waves (radio-controlled time-pieces G04R) since 2010 IPC+CPC Available in IPC and CPC
  • G04G 21/06 using voice since 2010 IPC+CPC Available in IPC and CPC
  • G04G 21/08 Touch switches specially adapted for time-pieces since 2010 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