(AP)—A former Penn State University professor has been sentenced to 41 months in federal prison for more than $3 million in federal research grant fraud.

said 55-year-old Craig Grimes of Raleigh, N.C., defrauded the National Institutes of Health between 2006 and 2011 while a Penn State professor of material sciences and engineering.

Authorities say his State College company got a $1.2 million grant, but funds weren't sent to Hershey Medical Center as promised and clinical studies and trials weren't done. Authorities say Grimes also made false statements to get a $1.9 million grant.

Grimes told the judge who sentenced him Friday that he was zealous in wanting to help the world.

Assistant U.S. Attorney Joseph Terz said Grimes "is not a mad scientist. He's a dishonest scientist."