. "Willis Harmon Ray is an American chemical engineer and a Vilas Research Professor Emeritus at the University of Wisconsin\u2013Madison. He is a Fellow of American Institute of Chemical Engineers and a member of the National Academy of Engineering. Ray is a noted control theorist, and in 2000 he received the Richard E. Bellman Control Heritage Award from the American Automatic Control Council."@en . "American academic" . "W. Harmon Ray"@en . . . . "Ray, W. Harmon"@en .