ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,568, issued on Oct. 7.

"Adjustable ladder platform" was invented by Charles S. Hayden (Upper Marlboro, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An adjustable ladder platform is an apparatus that aids in keeping extension ladders on firm, level footing having an open base frame that sits directly on the unlevel ground, roof surface, pavement or the like a flat surface, similar to a small tabletop that supports the feet of the extension ladder. The two components are then hinged together at one side of the frame. Then the opposite side is supported by two adjustable arms that are attached by bolts and wingnuts that can be attached and removed...