ALEXANDRIA, Va., April 9 -- United States Patent no. 12,268,988, issued on April 8, was assigned to K&N Engineering Inc. (Riverside, Calif.).
"HVAC system air filter" was invented by Steve Williams (Cherry Valley, Calif.) and Jere James Wall (Helendale, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) system air filter for a building ventilation system. The HVAC system air filter comprises a supportive frame configured to orient the HVAC system air filter within the building ventilation system. A composite filter medium retained within the supportive frame comprises a cotton gauze portion and an electrostatic ...