The Clean Energy Patent Growth Index (CEPGI)

The Clean Energy Patent Growth Index (CEPGI) provides an indication of the trend of innovative activity in the Clean Energy sector since 2002 in the U.S., along with Leading Patent Owners and Leading Country and State information. Results through the fourth quarter of 2009 reveal the CEPGI for 2009 to be at its highest level in the eight year period of its tracking at 1125 granted patents, up over 20 percent.

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