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CPC Subgroup
F25J 3/06

by partial condensation (F25J3/08 takes precedence; by rectification F25J3/02 )

Full Title

Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification > by partial condensation (F25J3/08 takes precedence; by rectification F25J3/02 )

Filing statistics

CPC F25J 3/06 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

3 direct subcodes

Child Classifications

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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