DIFF Subgroup
F02C 3/20 using a special fuel, oxidant, or dilution fluid to generate the combustion products
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Gas-turbine plants characterised by the use of combustion products as the working fluid > using a special fuel, oxidant, or dilution fluid to generate the combustion products
CPC:
Gas-turbine plants characterised by the use of combustion products as the working fluid (generated by intermittent combustion F02C5/00) > using a special fuel, oxidant, or dilution fluid to generate the combustion products
Of 5 combined children, 4 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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- F02C 3/22 the fuel or oxidant being gaseous at standard temperature and pressure (F02C3/28 takes precedence) IPC+CPC Available in IPC and CPC
- F02C 3/24 the fuel or oxidant being liquid at standard temperature and pressure IPC+CPC Available in IPC and CPC
- F02C 3/26 the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension 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