CPC Main Group Additional Only
F28F 2210/00 Heat exchange conduits
Filing statistics
CPC F28F 2210/00 belongs to the parent subclass F28F, which recorded 83,812 patent applications worldwide between 2013 and 2023. Annual filings declined from 7,008 in 2013 to 6,475 in 2023 (-8%), peaking at 8,704 applications in 2017. The most active applicants in class F28 are VALEO SYSTEMES THERMIQUES (1,945 applications), MITSUBISHI ELECTRIC CORPORATION (1,518 applications) and MAHLE INTERNATIONAL (1,120 applications).
Source: EPO PATSTAT, worldwide filings
5 direct subcodes
Child Classifications
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- F28F 2210/02 with particular branching, e.g. fractal conduit arrangements
- F28F 2210/04 Arrangements of conduits common to different heat exchange sections, the conduits having channels for different circuits
- F28F 2210/06 having walls comprising obliquely extending corrugations, e.g. in the form of threads
- F28F 2210/08 Assemblies of conduits having different features
- F28F 2210/10 Particular layout, e.g. for uniform temperature distribution
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