ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,054, issued on Jan. 28, was assigned to SAXA GRESTONE S.P.A. (Roccasecca, Italy).
"Porcelain stoneware products" was invented by Francesco Borgomeo (Rome).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a porcelain stoneware element for the construction of driveways."
The patent was filed on April 18, 2019, under Application No. 17/049,315.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=12209054&OS=12209054&RS=12209054
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