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IPC Subgroup
G04B 11/02

Devices allowing the motion of a rotatable part in only one direction

Introduced: January 1980

Last revised: January 2006

Full Title

Click devices, stop clicks or clutches for winding > Devices allowing the motion of a rotatable part in only one direction

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

1 direct subcode

Child Classifications

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  • G04B 11/04 Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet

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