in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members > without members having orbital motion > Gearings providing a continuous range of gear ratios > in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B

CPC:

Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members (control of change-speed or reversing-gearings conveying rotary motion F16H59/00 - F16H63/00) > without members having orbital motion > Gearings providing a continuous range of gear ratios > in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B

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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F16H 15/08 in which the member B is a disc with a flat or approximately flat friction surface IPC+CPC Available in IPC and CPC
F16H 15/16 in which the member B has a conical friction surface IPC+CPC Available in IPC and CPC
F16H 15/26 in which the member B has a spherical friction surface centered on its axis of revolution IPC+CPC Available in IPC and CPC
F16H 15/32 in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line 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