Patent classifications
E
FIXED CONSTRUCTIONS
Load children
E04
BUILDING
Load children
E04C
STRUCTURAL ELEMENTS; BUILDING MATERIALS
Load children
2/00
Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
Load children Filter patents View analytics View as hierarchy
E04C2/44
characterised by the purpose
Load children Filter patents View analytics View as hierarchy
E04C2/52
with special adaptations for auxiliary purposes, e.g. serving for locating conduits
Load children Filter patents View analytics View as hierarchy
E04C2/521
serving for locating conduits; for ventilating, heating or cooling
Load children Filter patents View analytics View as hierarchy
E04C2/523
for ventilating
Filter patents View analytics View as hierarchy