Detroit, America's 11th most innovative metropolitan area

Rust Wire has an interesting article on innovation clusters in the Rust Belt. Measuring innovation as patents per Metropolitan Statistical Area (MSA) between 2006 and 2010, the Detroit-Warren-Livonia MSA comes righ between the Austin-Round Rock-San Marcos and the Dallas-Fort Worth-Arlington MSAs with 9316 patents. If we add the 2037 patents from the Ann Arbor MSA the region surges to 8th place: right after Chicago and before the Twin Cites.