ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,329, issued on Dec. 16, was assigned to CARBONCURE TECHNOLOGIES INC. (Dartmouth, Canada).

"Carbonation of concrete aggregates" was invented by Michael Thomas (Buckhorn, Canada), George Sean Monkman (Halifax, Canada), Alex Hanmore (Halifax, Canada) and Dean Paul Forgeron (Bayside, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein are methods and compositions for carbonation of recycled concrete aggregates (RCA) to produce carbonated RCA. In addition, uses of the carbonated RCA, such as in building materials, and building materials containing RCA, are included. Carbonation of RCA may be used alone or may be used in combination with...