CPC Main Group Additional Only
F28F 2215/00 Fins
7 direct subcodes
Child Classifications
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- F28F 2215/02 Arrangements of fins common to different heat exchange sections, the fins being in contact with different heat exchange media
- F28F 2215/04 Assemblies of fins having different features, e.g. with different fin densities
- F28F 2215/06 Hollow fins; fins with internal circuits
- F28F 2215/08 with openings, e.g. louvers
- F28F 2215/10 Secondary fins, e.g. projections or recesses on main fins
- F28F 2215/12 with U-shaped slots for laterally inserting conduits
- F28F 2215/14 in the form of movable or loose fins
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