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US 12,209,054 B2Granted
Porcelain stoneware products
AssigneeSaxa Grestone S.P.A.
InventorFrancesco Borgomeo
Life of this patent
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Abstract
The present invention relates to a porcelain stoneware element for the construction of driveways.
Claims8
A porcelain stoneware element for the construction of driveways with a tread surface and a base surface, having an average thickness, measured between said tread surface and said base surface, greater than or equal to 4.5 cm, wherein said porcelain stoneware is made by using a mixture comprising a percentage between 1% and 40% of ashes produced by the incineration of urban waste.
Dependencies are inferred from the claim text.