• All sections
• F - Mechanical engineering; lighting; heating; weapons; blasting
• F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact; heat storage plants or apparatus in general
• F28D 1/04 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits

Patent holdings for IPC class F28D 1/04

Total number of patents in this class: 812

10-year publication summary

Principal owners for this class