Itâ??s a shining example of UW-Madison research leading to a big idea that attracts tens of millions of dollars in private investment to create good-paying jobs right here in Wisconsin. Itâ??s Virent Energy Systems, which last week announced that investors had pumped an additional $46.4 million into the Madison company. All told, Virent has now attracted $116 million in funding since it was founded in 2002 by UW-Madison chemical engineering professor James Dumesic and former UW-Madison researcher Randy Cortright, who now serves as Virentâ??s chief technical officer.