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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

  1. LG ELECTRONICS KR 9,415
  2. HAIER SMART HOME 8,015
  3. MITSUBISHI ELECTRIC CORPORATION JP 5,758
  4. BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,827
  5. MIDEA 3,769
  6. GREE ELECTRIC APPLIANCES 3,417
  7. HAIER SMART HOME CN 3,403
  8. SAMSUNG ELECTRONICS COMPANY KR 3,329
  9. DAIKIN INDUSTRIES JP 2,908
  10. HEFEI MIDEA REFRIGERATOR COMPANY 2,186