CPC Main Group
F28F 9/00 Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
8 direct subcodes
Child Classifications
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- F28F 9/007 Auxiliary supports for elements
- F28F 9/02 Header boxes; End plates
- F28F 9/20 Arrangements of heat reflectors, e.g. separately-insertible reflecting walls
- F28F 9/22 Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F 9/24 Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates (F28F1/38 takes precedence; in general F15D)
- F28F 9/26 Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators (connecting different sections in water heaters F24H9/14 )
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