ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,104, issued on July 22, was assigned to WINGECO SRL (Genoa, Italy).

"Adaptive threshold for sliding doors" was invented by Marco Corbani (Genoa, Italy), Alberto Malatesta (Genoa, Italy) and Andrea Appoloni (Recco, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "The patent consists of a flap which can be employed for covering the cavity corresponding to the lower profile of a sliding window when the sash opens. Said system subsequently allowing automatic withdrawal of said flap in a side-by-side position and not interfering with the sliding of said door during closing: said automatic withdrawal thus taking place in correspondence with the slidin...