ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,206, issued on April 7, was assigned to Amrize Technology Switzerland LLC (Zug, Switzerland).
"Method of calcining a clay material" was invented by Thomas Durand (Holderbank, Switzerland) and Pascal Dion (Holderbank, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of calcining a clay material for use as a supplementary cementitious material, includes providing a raw clay material, optionally drying the raw clay material, granulating the raw clay material in order to obtain raw clay granules, calcining the raw clay granules to obtain calcined clay granules, and grinding the calcined clay granules to obtain a pulverulent supplement...