ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,460, issued on Jan. 13, was assigned to Energizer Group Ltd. (High Wycombe, Great Britain).
"Air freshener and substance diffusing membrane with removable seal" was invented by Chase Southwick Naisbitt (Lakewood, Ohio) and Michael Raymond Stallard (Wellington, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air freshener includes a reservoir for storing a liquid fragrant substance, the reservoir has a cavity and an opening to the cavity. A permeable membrane is coupled to the reservoir and has a first surface facing the cavity that covers the opening and a second surface facing away from the cavity. A laminate removable seal includes a metall...