DIFF Subgroup
F02D 1/02 not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Controlling fuel-injection pumps, e.g. of high-pressure injection type > not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
CPC:
Controlling fuel-injection pumps, e.g. of high pressure injection type (F02D3/00 takes precedence) > not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
Of 4 combined children, 3 exist in both systems.
1 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F02D 1/04 by mechanical means dependent on engine speed, e.g. using centrifugal governors (F02D1/08 takes precedence) +1 CPC IPC+CPC Available in IPC and CPC
- F02D 1/06 by means dependent on pressure of engine working fluid (F02D1/08 takes precedence) +1 CPC IPC+CPC Available in IPC and CPC
- F02D 1/08 Transmission of control impulse to pump control, e.g. with power drive or power assistance +1 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