The USPTO granted 3,061 patents on clean tech inventions in 2012, up nearly 30 percent from 2011. The largest gain was in the Biomass/Biofuel area (up 70 percent ), followed up Solar (up 60 percent), and Wind and Hybrid/Electric vehicles (up 40 percent), with more modest gains in Fuel Cells, Tidal/Wave Energy patents, Geothermal and Hydroelectric technologies.
In terms of total patent count, the Fuel Cell sector continued to lead all other areas with 1,024 patents, followed by Solar, Wind, and Hybrid/Electric Vehicles. Biomass/Biofuel patents led the second tier with 179 patents followed by Tidal energy patents at 61. More information is available at: