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CPC Subgroup Additional Only
F25J 2220/80

Separating impurities from carbon dioxide, e.g. H2O or water-soluble contaminants

Full Title

Processes or apparatus involving steps for the removal of impurities > Separating impurities from carbon dioxide, e.g. H2O or water-soluble contaminants

2 direct subcodes

Child Classifications

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  • F25J 2220/82 Separating low boiling, i.e. more volatile components, e.g. He, H2, CO, Air gases, CH4
  • F25J 2220/84 Separating high boiling, i.e. less volatile components, e.g. NOx, SOx, H2S

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