ALEXANDRIA, Va., July 21 -- United States Patent no. 12,688,886, issued on July 21, was assigned to STMicroelectronics International N.V. (Geneva).

"Method of operating phase change memories, corresponding device and computer program product" was invented by Francesco Tomaiuolo (Acireale, Italy), Marco Ruta (San Gregorio di Catania, Italy), Michelangelo Pisasale (Catania, Italy), Marion Helne Grimal (Catania, Italy), Luigi Buono (Gravina di Catania, Italy), Antonino Conte (Tremestieri Etneo, Italy), Diego De Costantini (Augusta, Italy) and Marco Eugenio Gibilaro (Aci Castello, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Phase Change Memory (PCM) device includes sets of cells in which a binary logi...