ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,997, issued on June 17.
"Concrete formulations, structures, and inlays and methods therefore" was invented by Andrew Morgan (Denton, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A process for forming an inlay in a cured concrete structure includes forming a pocket in a preexisting concrete structure, filling the pocket with a cementitious mixture, curing the mixture in the pocket to form a cured mixture, and polishing the cured mixture in the pocket. The cementitious mixture includes a Portland cement, an admixture comprising at least one of a strengthener, a plasticizer, or an accelerator, and an aggregate."
The patent was filed on Nov. 22...