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CPC Main Group
F28C 1/00

Direct-contact trickle coolers, e.g. cooling towers (building construction E04H5/12; enclosed spaces cooled by trickle F25; components parts of trickle coolers F28F25/00; )

10 direct subcodes

Child Classifications

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  • F28C 1/02 with counter-current only
  • F28C 1/04 with cross-current only
  • F28C 1/06 with both counter-current and cross-current
  • F28C 1/08 Arrangements for recovering heat from exhaust steam
  • F28C 1/10 Arrangements for suppressing noise
  • F28C 1/12 Arrangements for preventing clogging by frost
  • F28C 1/16 Arrangements for preventing condensation, precipitation or mist formation, outside the cooler (F28C1/14 takes precedence)

Top Applicants

Top 10 applicants by patent filingsfor class F28, 2013–2023, worldwide · Source: EPO PATSTAT

  1. VALEO SYSTEMES THERMIQUES FR 1,945
  2. MITSUBISHI ELECTRIC CORPORATION JP 1,518
  3. MAHLE INTERNATIONAL DE 1,120
  4. ALFA LAVAL SE 1,085
  5. HANON SYSTEMS KR 939
  6. DENSO CORPORATION JP 900
  7. LG ELECTRONICS KR 861
  8. HAMILTON SUNDSTRAND US 795
  9. DAIKIN INDUSTRIES JP 608
  10. DENSO CORPORATION 537