ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,484, issued on Feb. 3, was assigned to Woosh Air Inc. (San Francisco).
"Collapsible and foldable pleated disposable air filter" was invented by Winston Mok (San Francisco).
According to the abstract* released by the U.S. Patent & Trademark Office: "A foldable and disposable air filter media for insertion into an air filter frame is disclosed. The air filter media includes two or more filter pleated strips that are joined together. The outer edges of the air filter media are fixed to the frame to form the air filter. Each of the filter pleated strips have a number of pleats that increase the area to reduce pressure drop across the filter media while allowing air flow through to rem...