DETROIT -- A former General Motors engineer and her husband were found guilty on Friday of conspiring to steal the automaker's trade secrets.
Shanshan Du, 53, the former GM employee, was ruled guilty of conspiracy to possess trade secrets without authorization and two counts of unauthorized possession of trade secrets. She was found not guilty of three counts of wire fraud.
Du's husband, Yu Qin, 51, was found guilty on all six counts, as well as a seventh count for obstruction of justice.
Trade secret counts carry a penalty of up to 10 years imprisonment and a $250,000 fine. The wire fraud counts and an obstruction charge each carry a penalty of up to 20 years in prison and a $250,000 fine. Sentencing will occur in February 2013.
The jury of nine women and three men deliberated for less than a full day after the case was sent to them late on Thursday. The trial in U.S. District Court in Detroit began on Nov. 5.
Du and Qin were charged in 2010 in a seven-count indictment with trying to steal GM trade secrets related to hybrid vehicles to pass on to China's Chery Automobile Co.
Attorneys for both Du and Qin argued the documents in question were not trade secrets.
Du was accused of copying thousands of GM documents to an external hard drive five days after the automaker offered her a severance agreement in January 2005.
She left GM's advanced technology group in March 2005. In August of that year, Qin and Du proposed a joint venture on hybrids to China's Chery in a series of emails, according to court documents.
Then in November 2005, Qin, who had been working as an electrical engineer in Troy, applied for jobs as a hybrid engineer, claiming on his resume he had invented some of the stolen GM technology, according to court documents.
The couple were required to surrender their U.S. passports and cannot leave the Detroit area without court permission.