No details on his death were immediately available. He was 86.
Born in New York, the veteran entertainer began his career as a child actor performing on the stage and on TV during its infancy.
But his greatest success was as Tom Bradford, a middle-aged widower and father of eight children who met and married Abby, played by Betty Buckley. The ABC comedy-drama aired from 1877-1981.
Van Patten's film roles included 'Spaceballs', 'The Santa Trap' and 'Soylent Green'.