ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,164, issued on Feb. 10, was assigned to iGas Inc (Tampa, Fla.).
"Ladder with improved safety structures" was invented by Peter Yuanbao Meng (Tampa, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ladder including a ladder body and a positioning structure. The positioning structure is connected at the top of the ladder body and comprises a positioning connecting rod a pair of positioning legs. The positioning connecting rod is connected to the main body of the ladder and the positioning legs are connected to both ends of the positioning connecting rod. The positioning legs may include positioning links and a positioning plate. The positioning l...