Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Main Group
F25B 17/00

Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
Subclass:
REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS

Filing statistics

IPC F25B 17/00 belongs to the parent subclass F25B, which recorded 178,629 patent applications worldwide between 2013 and 2023. Annual filings grew from 11,239 in 2013 to 18,066 in 2023 (+61%), peaking at 19,059 applications in 2020. The most active applicants in class F25 are HAIER SMART HOME (13,215 applications), LG ELECTRONICS (8,561 applications) and MIDEA (7,315 applications).

Source: EPO PATSTAT, worldwide filings

4 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • F25B 17/08 the absorbent or adsorbent being a solid, e.g. salt
  • F25B 17/1 using the endothermic solution of salt
  • F25B 17/12 using desorption of hydrogen from a hydride

Top Applicants

Top 10 applicants by patent filingsfor 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