A three-judge Superior Court panel ruled Wednesday, barely two weeks after hearing oral arguments by a state prosecutor and lawyers for the former Penn State assistant football coach.
Sandusky says his lawyers didn't have enough time to prepare for trial, a prosecutor made improper references to Sandusky not testifying on his own behalf and the judge mishandled jury instructions.
The attorney general's office says the convictions should stand.
The 69-year-old Sandusky is serving a 30- to 60-year prison sentence. His lawyer says he plans to seek Supreme Court review.