Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines

Introduced: September 1968

Additional Content IPC

Fuel supply to apparatus for generating combustion products of high pressure or high velocity

Of 7 combined children, 4 exist in both systems.

3 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

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F02M 37/0011 +3 CPC CPC only CPC only
F02M 37/0047 +3 CPC CPC only CPC only
F02M 37/0076 +2 CPC CPC only CPC only
F02M 37/02 Feeding by means of suction apparatus, e.g. by air flow through carburettors (by driven pumps F02M37/04) +1 CPC IPC+CPC Available in IPC and CPC
F02M 37/04 Feeding by means of driven pumps +5 CPC IPC+CPC Available in IPC and CPC
F02M 37/20 characterised by means for preventing vapour lock IPC+CPC Available in IPC and CPC
F02M 37/22 Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system since 1980 IPC+CPC Available in IPC and CPC

Class F02,2013–2023, worldwide · Source: EPO PATSTAT

Class F02,2013–2023, worldwide · Source: EPO PATSTAT