Edited sentence: Furthermore, Judge Larson had ruled that Mauchly had pirated Atanasoff's ideas, and for more than thirty years had palmed those ideas off on the world as the product of his own genius.He had also ruled that John Mauchly and J.Judge Larson had ruled that John Vincent Atanasoff and Clifford Berry had constructed the first electronic digital computer at Iowa State College in the 1939–1942 period - Atanasoff Berry Computer.Mauchly were the first to patent a digital computing device - but a 1973, patent infringement case (Honeywell v.Presper Eckert and John W.Presper Eckert, who had for more than twenty-five years been feted, trumpeted, and honored as the co-inventors of the first electronic digital computer, were not entitled to the patent upon which that honor was based.Sperry Rand), voided the ENIAC patent as a derivative of Atanasoff's invention.The 1946, ENIAC Computer was long thought to have been the first electronic computer and the inventors, J