Brothers Stevan and Ivan Batinic pleaded innocent to charges that they conspired to sell supercomputer technology to the Soviet Union. The technology had a restricted, not classified, status but could have proved damaging to U.S. security if the Soviets got it, according to federal authorities. The government charged each man with five counts in an alleged scheme that the brothers hoped would net $4 million, prosecutors said. Stevan Batinic, 30, of Mountain View, was released in his mother's custody until he came come up with $100,000 bail, and Ivan Batinic, 29, of Fremont, was held in lieu of $150,000 bail. They were arraigned in San Jose before U.S. Magistrate Patricia Trumbull. The Batinics were arrested after federal agents recovered plans for a computer, developed by Saxpy Computer Corp. of Sunnyvale, that is capable of 1 billion operations a second.