CPC Subgroup
F01K 23/10 with exhaust fluid of one cycle heating the fluid in another cycle (F01K17/025 takes precedence)
Full Title
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)
3 direct subcodes
Child Classifications
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Top Applicants
Top 10 applicants by patent filingsfor 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