A federal jury on Thursday convicted 43-year-old Mohammad Reza Vaghari, of Broomall, of sending the products to Iran by way of Dubai.
Prosecutors say he and another man sent laboratory equipment, laptop computers and other products to Dubai, where coconspirators forwarded it to Iran.
Vaghari is being held under house arrest until a bail hearing Tuesday. His attorney says he conceded the items were shipped to Dubai but denied they ever reached Iran.
Vaghari's business partner, 44-year-old Mir Hossein Ghaemi, pleaded guilty to related charges last year.