for driving both front and rear wheels, e.g. four wheel drive vehicles

Introduced: September 1968

Full Title

Arrangement or mounting of transmissions in vehicles > for driving both front and rear wheels, e.g. four wheel drive vehicles

Of 6 combined children, 5 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 1985.

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B60K 17/342 having a longitudinal, endless element, e.g. belt or chain, for transmitting drive to wheels since 1985 IPC+CPC Available in IPC and CPC
B60K 17/344 having a transfer gear since 1985 IPC+CPC Available in IPC and CPC
B60K 17/348 having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speed (B60K17/346 takes precedence) since 1985 IPC+CPC Available in IPC and CPC
B60K 17/354 having separate mechanical assemblies for transmitting drive to the front or to the rear wheels or set of wheels since 1985 IPC+CPC Available in IPC and CPC
B60K 17/356 having fluid or electric motor, for driving one or more wheels since 1985 IPC+CPC Available in IPC and CPC
B60K 17/358 CPC only CPC only

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

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