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DIFF Subgroup
B60T 11/20

Tandem, side-by-side, or other multiple master cylinder units

Introduced: September 1968

Title

Titles differ between systems:

IPC: Tandem, side-by-side, or other multiple master-cylinder units

CPC: Tandem, side-by-side, or other multiple master cylinder units

Full Title

Full titles differ between systems:

IPC:

Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant > transmitting by fluid means, e.g. hydraulic > Master control, e.g. master cylinders > Tandem, side-by-side, or other multiple master-cylinder units

CPC:

Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant (the power assistance or drive being essential B60T13/00) > transmitting by fluid means, e.g. hydraulic > Master control, e.g. master cylinders (master cylinders associated with vacuum boosters B60T13/565) > Tandem, side-by-side, or other multiple master cylinder units

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

Child Classifications

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  • B60T 11/21 with two pedals operating on respective circuits, pressures therein being equalised when both pedals are operated together, e.g. for steering (steering non-deflectable wheels or endless tracks by differentially driving ground-engaging elements on opposite vehicle sides using brakes as main steering effecting means B62D11/08) since 1990 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B60,2013–2023, worldwide · Source: EPO PATSTAT

  1. TOYOTA MOTOR CORPORATION 28,052
  2. HYUNDAI MOTOR COMPANY KR 27,773
  3. FORD GLOBAL TECHNOLOGIES US 26,243
  4. KIA MOTORS CORPORATION KR 20,110
  5. ROBERT BOSCH DE 19,033
  6. TOYOTA MOTOR CORPORATION JP 17,924
  7. BMW (BAYERISCHE MOTOREN WERKE) DE 14,214
  8. HONDA MOTOR COMPANY 12,527
  9. AUDI DE 10,806
  10. GM GLOBAL TECHNOLOGY OPERATIONS US 10,336

Top Applicants (CPC)

Class B60,2013–2023, worldwide · Source: EPO PATSTAT

  1. HYUNDAI MOTOR COMPANY KR 31,729
  2. FORD GLOBAL TECHNOLOGIES US 29,270
  3. KIA MOTORS CORPORATION KR 23,892
  4. ROBERT BOSCH DE 20,384
  5. TOYOTA MOTOR CORPORATION JP 20,311
  6. TOYOTA MOTOR CORPORATION 20,237
  7. BMW (BAYERISCHE MOTOREN WERKE) DE 14,629
  8. GM GLOBAL TECHNOLOGY OPERATIONS US 11,896
  9. AUDI DE 11,084
  10. HONDA MOTOR COMPANY 10,940