DIFF Subgroup
F25B 43/04 for withdrawing non-condensible gases
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat > for withdrawing non-condensible gases
CPC:
Arrangements for separating or purifying gases or liquids (in analysers or rectifiers F25B33/00); Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat (F25B40/00 takes precedence) > for withdrawing non-condensible gases
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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Top Applicants
Top Applicants (IPC)
Class F25,2013–2023, worldwide · Source: EPO PATSTAT
- HAIER SMART HOME 13,215
- LG ELECTRONICS KR 8,561
- MIDEA 7,315
- GREE ELECTRIC APPLIANCES 6,041
- HEFEI MIDEA REFRIGERATOR COMPANY 5,211
- MITSUBISHI ELECTRIC CORPORATION JP 4,905
- HEFEI HUALING COMPANY 4,633
- BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,697
- QINGDAO HAIER INTELLIGENT TECHNOLOGY RESEARCH ANDDEVELOPMENT COMPANY 3,376
- HAIER SMART HOME CN 3,265
Top Applicants (CPC)
Class F25,2013–2023, worldwide · Source: EPO PATSTAT
- LG ELECTRONICS KR 9,415
- HAIER SMART HOME 8,015
- MITSUBISHI ELECTRIC CORPORATION JP 5,758
- BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,827
- MIDEA 3,769
- GREE ELECTRIC APPLIANCES 3,417
- HAIER SMART HOME CN 3,403
- SAMSUNG ELECTRONICS COMPANY KR 3,329
- DAIKIN INDUSTRIES JP 2,908
- HEFEI MIDEA REFRIGERATOR COMPANY 2,186