ST. PAUL, Minnesota (Reuters) - A federal jury, on Wednesday, found Minnesota businessman Tom Petters guilty of orchestrating a $3.65 billion Ponzi scheme.

The 52-year-old founder of Petters Group Worldwide Inc was convicted on all 20 counts he faced, including wire fraud, mail fraud and money laundering.

Prosecutors said Petters could face 30 years to life in prison when he is sentenced within the next few months.

The government had accused Petters of using one of his companies, Petters Co, to bilk investors who thought he was using their money to buy consumer electronics for resale to retailers such as Costco Wholesale Corp and BJ's Wholesale Club Inc.

"Mr. Petters' company was a fraud, and Mr. Petters was his company," prosecutor John Marti told reporters after the verdict.

Wearing a charcoal gray suit, red tie and white shirt, Petters sat stone-faced, staring at US District Judge Richard Kyle in St. Paul federal court after the verdict by a jury of seven women and five men was read.

"We disagree with the outcome," Jon Hopeman, a lawyer for Petters, said in a statement. "As much as anything, the trial showed how much good Mr. Petters has done in the world. This too is worthy of reflection."

Petters' operations once included businesses such as Polaroid Corp and Sun Country Airlines Inc, but went bankrupt last year after Petters was charged.