ALEXANDRIA, Va., April 2 -- United States Patent no. 12,264,844, issued on April 1, was assigned to ZOBELE HOLDING SPA (Trento, Italy).
"Air purification device" was invented by Joaquim Llorente Alonso (Barcelona, Spain), Moises Caballero Tapia (Barcelona, Spain) and Alba Graus Ferrer (Barcelona, Spain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an air purification device comprising a casing (1) that houses a fan (2) and a filter (3) placed in front of said fan (2), such that air passes through said filter (3) and exits the casing (1) by means of said fan (2), and is characterised in that said filter (3) is placed in a replaceable part (4) mounted in a detachable way in said casin...