CPC Main Group
F02C 3/00 Gas-turbine plants characterised by the use of combustion products as the working fluid (generated by intermittent combustion F02C5/00)
Filing statistics
CPC F02C 3/00 belongs to the parent subclass F02C, which recorded 72,456 patent applications worldwide between 2013 and 2023. Annual filings declined from 6,952 in 2013 to 5,433 in 2023 (-22%), peaking at 7,765 applications in 2016. The most active applicants in class F02 are ROBERT BOSCH (8,801 applications), FORD GLOBAL TECHNOLOGIES (8,171 applications) and GE (GENERAL ELECTRIC COMPANY) (6,957 applications).
Source: EPO PATSTAT, worldwide filings
7 direct subcodes
Child Classifications
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- F02C 3/02 using exhaust-gas pressure in a pressure exchanger to compress combustion-air (pressure exchangers per se F04F13/00)
- F02C 3/04 having a turbine driving a compressor (power transmission arrangements F02C7/36; control of working fluid flow F02C9/16)
- F02C 3/14 characterised by the arrangement of the combustion chamber in the plant (combustion chambers per se F23R; F02C3/205 takes precedence)
- F02C 3/20 using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C 3/32 Inducing air flow by fluid jet, e.g. ejector action
- F02C 3/34 with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle
- F02C 3/36 Open cycles
Top Applicants
Top 10 applicants by patent filingsfor 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