CPC Main Group Additional Only
F25J 2270/00 Refrigeration techniques used
Filing statistics
CPC F25J 2270/00 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
18 direct subcodes
Child Classifications
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- F25J 2270/02 Internal refrigeration with liquid vaporising loop
- F25J 2270/04 Internal refrigeration with work-producing gas expansion loop
- F25J 2270/08 Internal refrigeration by flash gas recovery loop
- F25J 2270/12 External refrigeration with liquid vaporising loop
- F25J 2270/14 External refrigeration with work-producing gas expansion loop
- F25J 2270/18 External refrigeration with incorporated cascade loop
- F25J 2270/20 Quasi-closed internal or closed external hydrogen refrigeration cycle
- F25J 2270/24 Quasi-closed internal or closed external carbon monoxide refrigeration cycle
- F25J 2270/30 Quasi-closed internal or closed external helium refrigeration cycle
- F25J 2270/40 Quasi-closed internal or closed external air refrigeration cycle
- F25J 2270/42 Quasi-closed internal or closed external nitrogen refrigeration cycle
- F25J 2270/50 Quasi-closed internal or closed external oxygen refrigeration cycle
- F25J 2270/58 Quasi-closed internal or closed external argon refrigeration cycle
- F25J 2270/60 Closed external refrigeration cycle with single component refrigerant [SCR], e.g. C1-, C2- or C3-hydrocarbons
- F25J 2270/66 Closed external refrigeration cycle with multi component refrigerant [MCR], e.g. mixture of hydrocarbons
- F25J 2270/80 Quasi-closed internal or closed external carbon dioxide refrigeration cycle
- F25J 2270/88 Quasi-closed internal refrigeration or heat pump cycle, if not otherwise provided
- F25J 2270/90 External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
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