Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G04F 5/08

using magnetostrictive resonators

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Apparatus for producing preselected time intervals for use as timing standards > using oscillators with electromechanical resonators > using magnetostrictive resonators

CPC:

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 magnetostrictive resonators

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class G04,2013–2023, worldwide · Source: EPO PATSTAT

  1. THE SWATCH GROUP RESEARCH AND DEVELOPMENT CH 1,705
  2. ETA SA MANUFACTURE HORLOGERE SUISSE CH 1,443
  3. SAMSUNG ELECTRONICS COMPANY KR 1,104
  4. APPLE US 1,038
  5. SEIKO EPSON CORPORATION 875
  6. NIVAROX-FAR CH 781
  7. CASIO COMPUTER COMPANY 734
  8. MONTRES BREGUET CH 715
  9. SEIKO EPSON CORPORATION JP 715
  10. OMEGA CH 555