CPC Subgroup
G04F 5/06 using piezoelectric resonators
Full Title
Apparatus for producing preselected time intervals for use as timing standards (generating clock signals for electric digital computers G06F1/04) > using oscillators with electromechanical resonators > using piezoelectric resonators
1 direct subcode
Child Classifications
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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