ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,016, issued on April 15, was assigned to AVENIR INNOVATION (Allegre, France).

"Treatment plant with optimised densimetric sorting and related treatment process" was invented by Fabien Michel Alain Charreyre (Le-Puy-en-Velay, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A plant for treating a mixture of waste products from a domestic waste collection, comprising a unit for treating a mixture (2B) of materials obtained from the mixture of waste, a substantial portion of the mass of the mixture of materials being formed by biodegradable materials, the treatment unit comprising a trommel screen (3) provided with a wall (4) for separating the mix...