B60T 13/52 indirect, i.e. vacuum booster units
Introduced: September 1968
Full Title
Full titles differ between systems:
Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems > with fluid assistance, drive, or release > the fluid being gaseous > Vacuum systems > indirect, i.e. vacuum booster units
Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems (arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions B60T8/00; valves incorporated in such systems B60T15/00) > with fluid assistance, drive, or release > the fluid being gaseous > Vacuum systems > indirect, i.e. vacuum booster units
IPC and CPC are identically structured here. All 7 subcodes exist in both systems.
Child Classifications
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- B60T 13/563 with multiple booster units, e.g. tandem booster units since 1990 IPC+CPC Available in IPC and CPC
- B60T 13/565 characterised by being associated with master cylinders, e.g. integrally formed since 1990 IPC+CPC Available in IPC and CPC
- B60T 13/567 characterised by constructional features of the casing or by its strengthening or mounting arrangements since 1990 +1 CPC IPC+CPC Available in IPC and CPC
- B60T 13/569 characterised by piston details, e.g. construction, mounting of diaphragm since 1990 IPC+CPC Available in IPC and CPC
- B60T 13/57 characterised by constructional features of control valves since 1990 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B60,2013–2023, worldwide · Source: EPO PATSTAT
- TOYOTA MOTOR CORPORATION 28,052
- HYUNDAI MOTOR COMPANY KR 27,773
- FORD GLOBAL TECHNOLOGIES US 26,243
- KIA MOTORS CORPORATION KR 20,110
- ROBERT BOSCH DE 19,033
- TOYOTA MOTOR CORPORATION JP 17,924
- BMW (BAYERISCHE MOTOREN WERKE) DE 14,214
- HONDA MOTOR COMPANY 12,527
- AUDI DE 10,806
- GM GLOBAL TECHNOLOGY OPERATIONS US 10,336
Top Applicants (CPC)
Class B60,2013–2023, worldwide · Source: EPO PATSTAT
- HYUNDAI MOTOR COMPANY KR 31,729
- FORD GLOBAL TECHNOLOGIES US 29,270
- KIA MOTORS CORPORATION KR 23,892
- ROBERT BOSCH DE 20,384
- TOYOTA MOTOR CORPORATION JP 20,311
- TOYOTA MOTOR CORPORATION 20,237
- BMW (BAYERISCHE MOTOREN WERKE) DE 14,629
- GM GLOBAL TECHNOLOGY OPERATIONS US 11,896
- AUDI DE 11,084
- HONDA MOTOR COMPANY 10,940