using resilient force-resisters

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices > using resilient force-resisters

CPC:

Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices (electric or electronic controls therefor A63B24/00) > using resilient force-resisters

CPC subdivides this area 2x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

Child Classifications

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A63B 21/021 CPC only CPC only
A63B 21/022 CPC only CPC only
A63B 21/023 +1 CPC CPC only CPC only
A63B 21/026 +1 CPC CPC only CPC only
A63B 21/028 CPC only CPC only
A63B 21/04 attached to static foundation +2 CPC IPC+CPC Available in IPC and CPC
A63B 21/045 having torsion element since 1990 +1 CPC IPC+CPC Available in IPC and CPC
A63B 21/05 Linearly-compressed elements since 1990 IPC+CPC Available in IPC and CPC
A63B 21/055 extension element type since 1990 +1 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class A63,2013–2023, worldwide · Source: EPO PATSTAT

SANKYO 23,899
SANYO PRODUCT COMPANY 23,718
DAIICHI SHOKAI COMPANY 13,338
KYORAKU SANGYO 10,447
UNIVERSAL ENTERTAINMENT CORPORATION 9,545
SANEI R & D COMPANY 9,135
SAMMY CORPORATION 7,126
NEWGIN CORPORATION 5,651
NETEASE 4,877
HEIWA CORPORATION 3,938

Top Applicants (CPC)

Class A63,2013–2023, worldwide · Source: EPO PATSTAT

NETEASE 4,324
TENCENT TECHNOLOGY (SHENZHEN) COMPANY 3,255
SONY INTERACTIVE ENTERTAINMENT JP 2,643
TENCENT TECHNOLOGY (SHENZHEN) COMPANY CN 2,353
UNIVERSAL CITY STUDIOS US 2,005
KARSTEN MANUFACTURING CORPORATION US 1,883
ACUSHNET COMPANY US 1,495
MICROSOFT TECHNOLOGY LICENSING US 1,272
NINTENDO COMPANY JP 1,260
SONY CORPORATION JP 1,169