peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures > peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed

CPC:

Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures (the non-fuel substances being gaseous F02D21/00) > peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed

CPC subdivides this area 7x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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F02D 19/0602 +3 CPC CPC only CPC only
F02D 19/0623 CPC only CPC only
F02D 19/0626 +2 CPC CPC only CPC only
F02D 19/0639 +2 CPC CPC only CPC only
F02D 19/066 CPC only CPC only
F02D 19/0663 +6 CPC CPC only CPC only
F02D 19/08 simultaneously using pluralities of fuels (F02D19/12 takes precedence) +2 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

TOYOTA MOTOR CORPORATION 8,687
ROBERT BOSCH DE 8,328
FORD GLOBAL TECHNOLOGIES US 7,423
GE (GENERAL ELECTRIC COMPANY) US 5,732
UNITED TECHNOLOGIES CORPORATION (UTC) US 5,592
HYUNDAI MOTOR COMPANY KR 4,699
TOYOTA MOTOR CORPORATION JP 4,541
DENSO CORPORATION 3,711
WEICHAI POWER COMPANY 3,486
SAFRAN AIRCRAFT ENGINES FR 3,249

Top Applicants (CPC)

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

ROBERT BOSCH DE 8,801
FORD GLOBAL TECHNOLOGIES US 8,171
GE (GENERAL ELECTRIC COMPANY) US 6,957
HYUNDAI MOTOR COMPANY KR 5,390
UNITED TECHNOLOGIES CORPORATION (UTC) US 5,250
TOYOTA MOTOR CORPORATION JP 5,214
TOYOTA MOTOR CORPORATION 4,149
DENSO CORPORATION JP 3,400
KIA MOTORS CORPORATION KR 3,388
SAFRAN AIRCRAFT ENGINES FR 3,332