G04B 23/02 Alarm clocks
Introduced: September 1968
Last revised: January 2006
Full Title
Arrangements producing acoustic signals at preselected times > Alarm clocks
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS
Filing statistics
IPC G04B 23/02 belongs to the parent subclass G04B, which recorded 30,807 patent applications worldwide between 2013 and 2023. Annual filings declined from 2,751 in 2013 to 2,337 in 2023 (-15%), peaking at 3,317 applications in 2020. The most active applicants in class G04 are THE SWATCH GROUP RESEARCH AND DEVELOPMENT (1,570 applications), ETA SA MANUFACTURE HORLOGERE SUISSE (1,409 applications) and CASIO COMPUTER COMPANY (1,172 applications).
Source: EPO PATSTAT, worldwide filings
6 direct subcodes
Child Classifications
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- G04B 23/03 Alarm signal stop arrangements
- G04B 23/04 with coarse and fine setting of the preselected time
- G04B 23/06 adjustable for several preselected times with automatic stopping of the signal
- G04B 23/08 operating on successive days without resetting; operating only once in each 24 hours
- G04B 23/1 with presignal; with repeated signal; with changeable intensity of sound
- G04B 23/12 Alarm watches to be worn in pockets or on the wrist
Top Applicants
Top 10 applicants by patent filingsfor 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