Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
G04C 3/033

using torsion pendulums; using conical pendulums

Introduced: January 1980

Last revised: January 2006

Full Title

Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means > wherein movement is regulated by a pendulum > using torsion pendulums; using conical pendulums

Classification Context

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

Filing statistics

IPC G04C 3/033 belongs to the parent subclass G04C, which recorded 5,757 patent applications worldwide between 2013 and 2023. Annual filings declined from 653 in 2013 to 279 in 2023 (-57%), peaking at 665 applications in 2015. 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

Top Applicants

Top 10 applicants by patent filingsfor class G04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. THE SWATCH GROUP RESEARCH AND DEVELOPMENT CH 1,570
  2. ETA SA MANUFACTURE HORLOGERE SUISSE CH 1,409
  3. CASIO COMPUTER COMPANY 1,172
  4. SEIKO EPSON CORPORATION 1,100
  5. SAMSUNG ELECTRONICS COMPANY KR 768
  6. NIVAROX-FAR CH 750
  7. MONTRES BREGUET CH 707
  8. APPLE US 706
  9. SEIKO EPSON CORPORATION JP 648
  10. CITIZEN WATCH COMPANY 578