F16F 15/12 using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon ( , F16F15/16 take precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
CPC: using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon ( , F16F15/16 take precedence)
Full Title
Full titles differ between systems:
Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion > Suppression of vibrations in rotating systems by making use of members moving with the system > using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
Suppression of vibrations in systems ( ; vehicle seat suspension devices B60N2/50; ); Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion ( ; testing static and dynamic balance of machines or structures G01M1/00) > Suppression of vibrations in rotating systems by making use of members moving with the system (by balancing F16F15/22 ; with flywheels acting variably or intermittently F16H ) > using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon ( , F16F15/16 take precedence)
CPC subdivides this area 3x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1995.
Child Classifications
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- F16F 15/121 using springs as elastic members, e.g. metallic springs since 1995 +6 CPC IPC+CPC Available in IPC and CPC
- F16F 15/129 characterised by friction-damping means ( , F16F15/131 take precedence) since 1995 +3 CPC IPC+CPC Available in IPC and CPC
- F16F 15/131 the rotating system comprising two or more gyratory masses since 1995 +7 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class F16,2013–2023, worldwide · Source: EPO PATSTAT
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 21,545
- ZAHNRADFABRIK FRIEDRICHSHAFEN DE 9,446
- TOYOTA MOTOR CORPORATION 7,215
- HYUNDAI MOTOR COMPANY KR 6,846
- ROBERT BOSCH DE 6,106
- NTN CORPORATION 5,305
- SKF SE 4,219
- KIA MOTORS CORPORATION KR 3,852
- NSK 3,850
- HONDA MOTOR COMPANY 3,639
Top Applicants (CPC)
Class F16,2013–2023, worldwide · Source: EPO PATSTAT
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 22,817
- ZAHNRADFABRIK FRIEDRICHSHAFEN DE 10,523
- HYUNDAI MOTOR COMPANY KR 7,933
- ROBERT BOSCH DE 7,059
- KIA MOTORS CORPORATION KR 4,867
- SKF SE 4,729
- TOYOTA MOTOR CORPORATION JP 4,111
- FORD GLOBAL TECHNOLOGIES US 3,838
- GM GLOBAL TECHNOLOGY OPERATIONS US 3,575
- TOYOTA MOTOR CORPORATION 3,499