Number of patents filed for renewable energy technologies, 2000 to 2016

Annual number of patents filed for innovations in renewable energy technologies, measured in key countries. This includes patents filed in wind, solar (PV and
thermal), bioenergy, geothermal, marine, and hydropower. Note that figures for 2014-16 may be subject to a time lag; processing times of patent applications vary and
some patents submitted over this period may not yet be recorded in statistics. These figures will be updated with time if additional patent applications are recorded.