ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,228,307, issued on Feb. 18.

"Adjustable vent cover" was invented by Raymond Hurt (Plain City, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "An adjustable vent cover includes a base having a perimeter surface surrounding a central opening. A cover is connected to the base via one or more hinges. The cover includes an interior volume accessible via a slot disposed on a forward-facing edge of the cover. The cover is biased toward a closed position that closes off the opening of the base. A register or vent is operably connected to the base. The cover is configured to move to an open position via forced air from the vent, and to return to the closed p...