Claiming to have purchased the full rights to the name and armors, Tony Stark's first cousin once removed laid siege to a refuge called Sanctuary that not only led to his first encounter with Machine Man, but also the deaths of dozens of innocents before escaping. Machine Man eventually hunted Arno down and defeated him handily.
After a few appearances here and there, Arno scored the solo spotlight in the IRON MAN 2020 one-shot in 1994, by Walt Simonson, Bob Wiacek, and William Rosado. There, readers saw a man not only struggling with the stability of his own company, but with the burden of carrying on Iron Man's legacy.
To regain some of his reputation after the Machine Man fiasco, Stark took a job from the wealthy Wellington Marcus to rescue his daughter Melodi from a remote locale dubbed Paradise Island. Unbeknownst to Iron Man, though, Melodi discovered that her father intended to unleash a computer virus that would wipe out the world's systems unless everyone effected bought new programs directly from him. She carried the anti-virus on her person, which was why her plane had been shot down in the first place. Stark saved the day and got her off the island, but Melodi filled him in on the truth.