ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,972, issued on Nov. 3.

"Rangehood with combined airflow director and grease tray" was invented by Sine Kon Hu (Toronto).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides an improved kitchen rangehood for installation above a cook top. The rangehood has a housing and an exhaust fan assembly mounted therein. The exhaust fan assembly may include a cyclonic axial fan for drawing air and cooking fumes into the rangehood and expel outside the kitchen. A filter unit may be provided at the opening formed at a lower edge of the housing to reduce condensation and accumulation of grease on to the exhaust fan and the interior of the rangehood....