CPC Main Group Additional Only
F25J 2240/00 Processes or apparatus involving steps for expanding of process streams
Filing statistics
CPC F25J 2240/00 belongs to the parent subclass F25J, which recorded 16,845 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,238 in 2013 to 1,459 in 2023 (+18%), peaking at 1,807 applications in 2016. The most active applicants in class F25 are LG ELECTRONICS (9,415 applications), HAIER SMART HOME (8,015 applications) and MITSUBISHI ELECTRIC CORPORATION (5,758 applications).
Source: EPO PATSTAT, worldwide filings
7 direct subcodes
Child Classifications
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- F25J 2240/02 Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
- F25J 2240/30 Dynamic liquid or hydraulic expansion with extraction of work, e.g. single phase or two-phase turbine
- F25J 2240/40 Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
- F25J 2240/60 Expansion by ejector or injector, e.g. "Gasstrahlpumpe", "venturi mixing", "jet pumps"
- F25J 2240/70 Steam turbine, e.g. used in a Rankine cycle
- F25J 2240/80 Hot exhaust gas turbine combustion engine
- F25J 2240/90 Hot gas waste turbine of an indirect heated gas for power generation
Top Applicants
Top 10 applicants by patent filingsfor class F25, 2013–2023, worldwide · Source: EPO PATSTAT
- LG ELECTRONICS KR 9,415
- HAIER SMART HOME 8,015
- MITSUBISHI ELECTRIC CORPORATION JP 5,758
- BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,827
- MIDEA 3,769
- GREE ELECTRIC APPLIANCES 3,417
- HAIER SMART HOME CN 3,403
- SAMSUNG ELECTRONICS COMPANY KR 3,329
- DAIKIN INDUSTRIES JP 2,908
- HEFEI MIDEA REFRIGERATOR COMPANY 2,186