ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,307, issued on March 18, was assigned to PIOVAN S.P.A. (Santa Maria di Sala, Italy).

"Dehumidification method and apparatus" was invented by Enrico Bellio (Ponzano Veneto, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and an apparatus for the dehumidification and/or drying of plastic material in the form of granules and/or micro-granules and/or powder and/or flakes or similar are described, with at least one hopper for dehumidifying/drying the plastic material, a generator of a process fluid that passes through the hopper, at least two molecular sieves towers arranged in parallel and operating alternately to dehumidify the process f...