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DIFF Subgroup
F25B 41/20

Disposition of valves, e.g. of on-off valves or flow control valves (expansion valves F25B41/31)

Introduced: January 2021

Title

Titles differ between systems:

IPC: Disposition of valves, e.g. of on-off valves or flow control valves

CPC: Disposition of valves, e.g. of on-off valves or flow control valves (expansion valves F25B41/31)

Full Title

Full titles differ between systems:

IPC:

Fluid-circulation arrangements > Disposition of valves, e.g. of on-off valves or flow control valves

CPC:

Fluid-circulation arrangements > Disposition of valves, e.g. of on-off valves or flow control valves (expansion valves F25B41/31)

Additional Content IPC

Expansion valves

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

IPC defines codes here since 2021.

Child Classifications

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  • F25B 41/22 between evaporator and compressor since 2021 IPC+CPC Available in IPC and CPC
  • F25B 41/24 Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part since 2021 IPC+CPC Available in IPC and CPC
  • F25B 41/26 of fluid flow reversing valves since 2021 IPC+CPC Available in IPC and CPC
  • F25B 41/28 specially adapted for sorption cycles since 2021 IPC+CPC Available in IPC and CPC

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