G04G ELECTRONIC TIME-PIECES
Introduced: January 1980
Description
G04G covers electronic timekeeping devices and systems that employ electronic circuits or components to measure, indicate, or regulate time. This includes digital and analog electronic clocks, watches, chronometers, and timing apparatus utilizing quartz oscillators, microprocessors, or other electronic timing mechanisms. The classification encompasses both the timekeeping circuitry and integrated display technologies (such as LED or LCD), as well as associated features like alarms, calendars, and time synchronization functions. Mechanical timekeeping devices without electronic components fall outside this scope and are classified under G04B.
IPC and CPC are identically structured here. All 11 subcodes exist in both systems.
5 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
Navigate with arrow keys, Enter to open
- G04G 11/00 Producing optical signals at preselected times since 1980 IPC+CPC Available in IPC and CPC
- G04G 15/00 Time-pieces comprising means to be operated at preselected times or after preselected time intervals (G04G11/00, G04G13/00 take precedence; ; pulse delay circuits H03K5/13; electronic time-delay switches H03K17/28; electronic time-programme switches which automatically terminate their operation after the programme is completed H03K17/296) since 1980 +2 CPC IPC+CPC Available in IPC and CPC
- G04G 17/00 Structural details; Housings (constructional details of radio-controlled time-pieces, e.g. antennas G04R60/00) since 2000 +1 CPC IPC+CPC Available in IPC and CPC
- G04G 19/00 Electric power supply circuits specially adapted for use in electronic time-pieces since 2000 IPC+CPC Available in IPC and CPC
- G04G 21/00 Input or output devices integrated in time-pieces since 2010 IPC+CPC Available in IPC and CPC
- G04G 3/00 Producing timing pulses (driving circuits for stepping motors G04C3/14; producing preselected time intervals for use as timing standards G04F5/00; pulse technique in general H03K; control, synchronisation, or stabilisation of generators in general H03L) since 1980 IPC+CPC Available in IPC and CPC
- G04G 5/00 Setting, i.e. correcting or changing, the time-indication (radio-controlled time-pieces G04R) since 1980 +3 CPC IPC+CPC Available in IPC and CPC
- G04G 7/00 Synchronisation (radio-controlled time-pieces G04R) since 1980 +2 CPC IPC+CPC Available in IPC and CPC
- G04G 99/00 Subject matter not provided for in other groups of this subclass since 2010 +2 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class G04,2013–2023, worldwide · Source: EPO PATSTAT
- THE SWATCH GROUP RESEARCH AND DEVELOPMENT CH 1,570
- ETA SA MANUFACTURE HORLOGERE SUISSE CH 1,409
- CASIO COMPUTER COMPANY 1,172
- SEIKO EPSON CORPORATION 1,100
- SAMSUNG ELECTRONICS COMPANY KR 768
- NIVAROX-FAR CH 750
- MONTRES BREGUET CH 707
- APPLE US 706
- SEIKO EPSON CORPORATION JP 648
- CITIZEN WATCH COMPANY 578
Top Applicants (CPC)
Class G04,2013–2023, worldwide · Source: EPO PATSTAT
- THE SWATCH GROUP RESEARCH AND DEVELOPMENT CH 1,705
- ETA SA MANUFACTURE HORLOGERE SUISSE CH 1,443
- SAMSUNG ELECTRONICS COMPANY KR 1,104
- APPLE US 1,038
- SEIKO EPSON CORPORATION 875
- NIVAROX-FAR CH 781
- CASIO COMPUTER COMPANY 734
- MONTRES BREGUET CH 715
- SEIKO EPSON CORPORATION JP 715
- OMEGA CH 555