DIFF Main Group
G04B 5/00 Automatic winding up
Introduced: September 1968
Title
Titles differ between systems:
IPC: Automatic winding-up
CPC: Automatic winding up
Full Title
Full titles differ between systems:
IPC:
Automatic winding-up
CPC:
Automatic winding up
Of 7 combined children, 4 exist in both systems.
3 codes are CPC-only extensions.
4 shared codes have differing titles between IPC and CPC.
Child Classifications
Navigate with arrow keys, Enter to open
- G04B 5/20 by movements of other objects, e.g. by opening a hand-bag, by opening a case, by opening a door; Winding up by wind power +2 CPC IPC+CPC Available in IPC and CPC
- G04B 5/22 by thermometric, barometric or like effects or alterations IPC+CPC Available in IPC and CPC
- G04B 5/24 Protecting means preventing overwinding (arranged in, or attached to, the barrel G04B1/20; in connection with keys or the like G04B3/06; in connection with parts of the cases G04B3/10 ) +1 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
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