CPC Subgroup Additional Only
F25J 2220/60 Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
Full Title
Processes or apparatus involving steps for the removal of impurities > Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
4 direct subcodes
Child Classifications
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- F25J 2220/62 Separating low boiling components, e.g. He, H2, N2, Air
- F25J 2220/64 Separating heavy hydrocarbons, e.g. NGL, LPG, C4+ hydrocarbons or heavy condensates in general
- F25J 2220/66 Separating acid gases, e.g. CO2, SO2, H2S or RSH
- F25J 2220/68 Separating water or hydrates
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