USA:

U.S. Clean Energy Patents Soar - Geothermal is Flat, Report Indicates (U.S. DoE Geothermal Technologies Program)

The number of clean energy U.S. patents granted in a quarter has reached a new high in the second quarter of 2012, according to the Clean Energy Patent Growth Index. The second quarter's 786 patents topped the first quarter total of 694, making it the highest tally in any quarter since the firm of Heslin Rothenberg Farley & Mesiti P.C. began tracking clean energy patents in 2002. 

However, patents granted for geothermal technology grew only slightly. Only two were granted in the second quarter.

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