using continuously-running mechanism

Introduced: September 1968

Last revised: January 2006

Full Title

Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals > Mechanisms measuring a chosen time interval independently of the time of day at which the interval starts > using continuously-running mechanism

Classification Context

Section:: PHYSICS
Class:: HOROLOGY
Subclass:: ELECTROMECHANICAL CLOCKS OR WATCHES

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