ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,222, issued on April 14, was assigned to LITTLE GIANT LADDER SYSTEMS LLC (Springville, Utah).

"Ladders, feet for ladders and hinges for ladders" was invented by Bradley Scott Maxfield (Spanish Fork, Utah), N. Ryan Moss (Mapleton, Utah), Brian B. Russell (Saratoga Springs, Utah) and Benjamin Lynn Cook (Provo, Utah).

According to the abstract* released by the U.S. Patent & Trademark Office: "Ladders and ladder components are described herein, including multipurpose and adjustable ladders. In one embodiment, a ladder includes a first assembly having rails and rungs, a second assembly having rails and rungs, and one or more hinges coupling the first and second assemblies together su...