CPC Main Group
F02C 5/00 Gas-turbine plants characterised by the working fluid being generated by intermittent combustion
Filing statistics
CPC F02C 5/00 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
4 direct subcodes
Child Classifications
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- F02C 5/02 characterised by the arrangement of the combustion chamber in the chamber in the plant (combustion chambers per se F23R)
- F02C 5/06 the working fluid being generated in an internal-combustion gas generated of the positive-displacement type having essentially no mechanical power output (internal-combustion engines with prolonged expansion using exhaust gas turbines F02B)
- F02C 5/10 the working fluid forming a resonating or oscillating gas column, i.e. the combustion chambers having no positively actuated valves, e.g. using Helmholtz effect
- F02C 5/12 the combustion chambers having inlet or outlet valves, e.g. Holzwarth gas-turbine plants
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