CPC Main Group
G04B 37/00 Cases
13 direct subcodes
Child Classifications
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- G04B 37/02 Evacuated cases; Cases filled with gas or liquids; Cases containing substances for absorbing or binding moisture or dust
- G04B 37/04 Mounting the clockwork in the case; Shock absorbing mountings
- G04B 37/06 Forming the passage for the winding stem through the case; Divided winding stems
- G04B 37/08 Hermetic sealing of openings, joints, passages or slits
- G04B 37/12 Cases for special purposes, e.g. watch combined with ring, watch combined with button (watch guards or protectors A45C11/10, A45C11/12; watches combined with cosmetic powder containers A45D33/30 )
- G04B 37/14 Suspending devices, supports or stands for time-pieces insofar as they form part of the case
- G04B 37/18 for pocket or wrist watches (G04B37/02 - G04B37/16 take precedence)
- G04B 37/22 Materials or processes of manufacturing pocket watch or wrist watch cases
Top Applicants
Top 10 applicants by patent filingsfor 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