F01K 23/10 with exhaust fluid of one cycle heating the fluid in another cycle (F01K17/025 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: with exhaust fluid of one cycle heating the fluid in another cycle
CPC: with exhaust fluid of one cycle heating the fluid in another cycle (F01K17/025 takes precedence)
Full Title
Full titles differ between systems:
Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids > the engine cycles being thermally coupled > combustion heat from one cycle heating the fluid in another cycle > with exhaust fluid of one cycle heating the fluid in another cycle
Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids > the engine cycles being thermally coupled > combustion heat from one cycle heating the fluid in another cycle > with exhaust fluid of one cycle heating the fluid in another cycle (F01K17/025 takes precedence)
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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Top Applicants
Top Applicants (IPC)
Class F01,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 8,496
- UNITED TECHNOLOGIES CORPORATION (UTC) US 7,291
- SAFRAN AIRCRAFT ENGINES FR 5,503
- TOYOTA MOTOR CORPORATION 4,556
- SIEMENS DE 3,992
- HYUNDAI MOTOR COMPANY KR 3,929
- RAYTHEON TECHNOLOGIES CORPORATION US 3,534
- FORD GLOBAL TECHNOLOGIES US 3,407
- TOYOTA MOTOR CORPORATION JP 3,042
- WEICHAI POWER COMPANY 2,888
Top Applicants (CPC)
Class F01,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 9,989
- UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
- SAFRAN AIRCRAFT ENGINES FR 6,248
- HYUNDAI MOTOR COMPANY KR 4,530
- SIEMENS DE 4,461
- FORD GLOBAL TECHNOLOGIES US 4,029
- RAYTHEON TECHNOLOGIES CORPORATION US 3,947
- TOYOTA MOTOR CORPORATION JP 3,734
- GE (GENERAL ELECTRIC COMPANY) 3,415
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063