The 3M Company is known for the variety of everyday products
it has brought to the market, such as Scotch tape and Ace bandages. However, when we think of 3M we generally
don't think of Cleantech R&D or Clean Energy patents.
In 2012, California was not only the state with the greatest population; it was also the state with the most clean energy patents. According to the Clean Energy Patent Growth Index (CEPGI), California was the leader in clean energy patents per state in 2012 with 346 patents, beating out second place New York by over 100 patents. Other top Clean Energy patent states: