Anne Lockwood, 53, Metaldyne's former vice president of sales, her husband, Michael Haehnel, 51, who was a senior engineer at the company, and Fuping Liu, 42, a metallurgist who worked for Metaldyne face charges of up to 20 years in prison and fines of up to $250,000 if convicted.
US enforcement agencies are taking intellectual theft seriously, with Detroit being one of seven cities earmarked for getting extra staff to combat the threat of IP theft and computer hacking.