Self-tightening brakes with pivoted brake shoes,

Introduced: September 1968

Title

Titles differ between systems:

IPC: Self-tightening brakes with pivoted brake-shoes

CPC: Self-tightening brakes with pivoted brake shoes,

Full Title

Full titles differ between systems:

IPC:

Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like > Self-tightening brakes with pivoted brake-shoes

CPC:

Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like (similar clutches F16D13/14) > Self-tightening brakes with pivoted brake shoes,

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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F16D 51/48 with two linked or directly-interacting brake shoes IPC+CPC Available in IPC and CPC
F16D 51/54 with three or more brake-shoes, at least two of them being linked or directly interacting IPC+CPC Available in IPC and CPC
F16D 51/60 with wedging action of a brake-shoe, e.g. the shoe entering as a wedge between the brake-drum and a stationary part IPC+CPC Available in IPC and CPC
F16D 51/66 an actuated brake-shoe being carried along and thereby engaging a member for actuating another brake-shoe 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