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US WINDPOWER
US10 patents
Top patents by PatentIndex Score
US5225712AJul 6, 1993
Variable speed wind turbine with reduced power fluctuation and a static VAR mode of operation
US WINDPOWER554 citations99
US5289041AFeb 22, 1994
Speed control system for a variable speed wind turbine
US WINDPOWER274 citations98
US5155375AOct 13, 1992
Speed control system for a variable speed wind turbine
US WINDPOWER248 citations98
US5172310ADec 15, 1992
Low impedance bus for power electronics
US WINDPOWER140 citations97
US5083039AJan 21, 1992
Variable speed wind turbine
US WINDPOWER527 citations97
US5187427AFeb 16, 1993
Static reactive power compensator
US WINDPOWER112 citations96
US4490093ADec 25, 1984
Windpower system
US WINDPOWER119 citations92
US4426192AJan 17, 1984
Method and apparatus for controlling windmill blade pitch
US WINDPOWER93 citations91
US4469956ASep 4, 1984
Windmill support structure
US WINDPOWER42 citations84
US4474531AOct 2, 1984
Windmill with direction-controlled feathering
US WINDPOWER24 citations69