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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
F25D 21/12

by hot-fluid circulating system separate from the refrigerant system

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Defrosting; Preventing frosting; Removing condensed or defrost water > Removing frost > by hot-fluid circulating system separate from the refrigerant system

CPC:

Defrosting; Preventing frosting; Removing condensed or defrost water (removing ice or water from heat-exchange apparatus in general F28F17/00; heating arrangements specially adapted for transparent or reflecting areas H05B3/84) > Removing frost (defrosting cycles F25B47/02) > by hot-fluid circulating system separate from the refrigerant system

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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Top Applicants

Top Applicants (IPC)

Class F25,2013–2023, worldwide · Source: EPO PATSTAT

  1. HAIER SMART HOME 13,215
  2. LG ELECTRONICS KR 8,561
  3. MIDEA 7,315
  4. GREE ELECTRIC APPLIANCES 6,041
  5. HEFEI MIDEA REFRIGERATOR COMPANY 5,211
  6. MITSUBISHI ELECTRIC CORPORATION JP 4,905
  7. HEFEI HUALING COMPANY 4,633
  8. BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,697
  9. QINGDAO HAIER INTELLIGENT TECHNOLOGY RESEARCH ANDDEVELOPMENT COMPANY 3,376
  10. HAIER SMART HOME CN 3,265

Top Applicants (CPC)

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