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Chart Oct 20, 2014

Comparison of U.S. Patents Filed under the Patent Cooperation Treaty for Clean Energy and Water Purification, 1999-2011

Solutions to the country’s growing water challenges lie, in part, with the development and adoption of new innovative technologies. Yet, in comparison to the clean energy sector, innovation in the water sector has remained low. Using the numbers of patents filed in clean energy and water purification as indicators, the clean energy sector has exhibited a much higher rate of innovation over the past decade.