CPC Subgroup
F28C 3/06 the heat-exchange media being a liquid and a gas or vapour (temperators for cooling steam F22)
Full Title
Other direct-contact heat-exchange apparatus > the heat-exchange media being a liquid and a gas or vapour (temperators for cooling steam F22)
1 direct subcode
Child Classifications
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- F28C 3/08 with change of state, e.g. absorption, evaporation, condensation (generating steam under pressure F22)
Top Applicants
Top 10 applicants by patent filingsfor class F28, 2013–2023, worldwide · Source: EPO PATSTAT
- VALEO SYSTEMES THERMIQUES FR 1,945
- MITSUBISHI ELECTRIC CORPORATION JP 1,518
- MAHLE INTERNATIONAL DE 1,120
- ALFA LAVAL SE 1,085
- HANON SYSTEMS KR 939
- DENSO CORPORATION JP 900
- LG ELECTRONICS KR 861
- HAMILTON SUNDSTRAND US 795
- DAIKIN INDUSTRIES JP 608
- DENSO CORPORATION 537