4. Minnesota
gallery most innovative minnesota
Cymbet has developed the EnerChip, a rechargeable solid state battery packaged and assembled like a semiconductor chip. It has many applications, including cellphones.
Patents per thousand residents: 3.22

Minnesota has pioneers in a diverse range of industries -- health care, retailing, manufacturing and engineering.

"Much of Minnesota's economy is homegrown. That's spurred innovation in the state for decades," said Bill Blazer, spokesman for the Minnesota Chamber of Commerce.

Industry leaders known for research and development -- including the Mayo Clinic, Medtronic (MDT), 3M (MMM) and Spam maker Hormel Foods (HRL) -- have all gotten their start in the state.


Source: Patents per thousands residents, based on U.S. Patent and Trademark Office data as published in the 2012 State Entrepreneurship Index from the University of Nebraska-Lincoln.
- Last updated October 26 2012 02:37 PM ET
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