• All sections
• E - Fixed constructions
• E04B - General building constructions; walls, e.g. partitions; roofs; floors; ceilings; insulation or other protection of buildings
• E04B 2/46 - Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities using elements having specially designed means for stabilising the position; Spacers for cavity walls by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails

Patent holdings for IPC class E04B 2/46

Total number of patents in this class: 58

10-year publication summary

Principal owners for this class