ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,440, issued on July 22, was assigned to Xerox Corp. (Norwalk, Conn.).

"Interacting with machines using natural language input and an enhanced state graph" was invented by Shiwali Mohan (Palo Alto, Calif.), Matthew Klenk (San Francisco), Matthew Shreve (Campbell, Calif.), Aaron Ang (Mountain View, Calif.), John Turner Maxwell III (Santa Clara, Calif.) and Kent Evans (Cupertino, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is provided. The method includes obtaining a state graph that represents a set of objects within an environment and a set of positions of the set of objects within the environment. The state graph includes a set of...