CPC Main Group
F28C 3/00 Other direct-contact heat-exchange apparatus
5 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- F28C 3/02 the heat-exchange media both being gases or vapours
- F28C 3/04 the heat-exchange media both being liquids
- F28C 3/06 the heat-exchange media being a liquid and a gas or vapour (temperators for cooling steam F22)
- F28C 3/10 one heat-exchange medium at least being a fluent solid, e.g. a particulate material
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