Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Load children
F28
HEAT EXCHANGE IN GENERAL
Load children
F28D
HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
Load children
21/00
Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
Load children Filter patents View analytics View as hierarchy
F28D21/0001
Recuperative heat exchangers
Load children Filter patents View analytics View as hierarchy
F28D21/0012
the heat being recuperated from waste water or from condensates
Filter patents View analytics View as hierarchy