ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,446,749, issued on Oct. 21, was assigned to BISSELL Inc. (Grand Rapids, Mich.).
"Surface cleaning apparatus" was invented by Tom Minh Nguyen (Grand Rapids, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A surface cleaning apparatus includes a recovery tank, an enclosure including a motor housing and a fan housing, and a suction source comprising a motor within the motor housing and a fan within the fan housing. The enclosure includes a muffler that muffles noise generated by an exhaust air flow produced by the fan."
The patent was filed on June 19, 2024, under Application No. 18/747,569.
*For further information, including images, charts and tab...