F25J 2240/02 Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
Full Title
Processes or apparatus involving steps for expanding of process streams > Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
Filing statistics
CPC F25J 2240/02 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
6 direct subcodes
Child Classifications
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- F25J 2240/04 Multiple expansion turbines in parallel
- F25J 2240/10 the fluid being air
- F25J 2240/12 the fluid being nitrogen
- F25J 2240/20 the fluid being oxygen
- F25J 2240/22 the fluid being oxygen enriched compared to air, e.g. "crude oxygen"
- F25J 2240/28 the fluid being argon or crude argon
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