US Patent Issued to 3M Innovative Properties on March 25 for "Powered room air purifier with easy-loading air filter" (Minnesota Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,160, issued on March 25, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Powered room air purifier with easy-loading air filter" was invented by Brian D. Gale (Blaine, Minn.), Andrew R. Fox (Oakdale, Minn.), Alonso M. Hernandez (Minneapolis) and Nicolas W. Tremain (Roseville, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A powered room air purifier including a non-movable air filter holder. The room air purifier may include at least one guide ramp located at an upper end of the air filter holder. An air filter may be installed into the air filter holder by a combination of translational and rotational movement of the air fil...