ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,809, issued on June 30, was assigned to BISSELL Inc. (Grand Rapids, Mich.).

"Air purifier with air treatment basket" was invented by Derek Smith (Greenville, Mich.), Habib Baydoun (Dearborn Heights, Mich.), Morgan Tolles (Hastings, Mich.) and Tyler Grab (Grand Rapids, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An air purifier and air treatment basket for inside air. The air purifier includes a housing. The air treatment basket is disposed in the housing. The air treatment basket includes an air treatment basket frame and a plurality of selectively removable air treatment panels containing filter media."

The patent was filed on July 31, 20...