CPC Main Group
G04G 21/00 Input or output devices integrated in time-pieces
4 direct subcodes
Child Classifications
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- G04G 21/02 Detectors of external physical values, e.g. temperature
- G04G 21/04 using radio waves (radio-controlled time-pieces G04R)
- G04G 21/06 using voice
- G04G 21/08 Touch switches specially adapted for time-pieces
Top Applicants
Top 10 applicants by patent filingsfor 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