US WINDPOWER has a total of 31 patent applications. Its first patent ever was published in 1981. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets electrical machinery and energy, engines, pumps and turbines and environmental technology are DANCONTROL ENG AS, CLIPPER WINDPOWER TECHNOLOGY and BERSIEK SHAMEL A.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | WIPO (World Intellectual Property Organization) | 7 | |
#3 | Australia | 5 | |
#4 | EPO (European Patent Office) | 5 | |
#5 | Canada | 4 | |
#6 | Denmark | 1 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Engines, pumps and turbines | |
#3 | Environmental technology | |
#4 | Semiconductors | |
#5 | Machines |
# | Name | Total Patents |
---|---|---|
#1 | Erdman William L | 15 |
#2 | Chertok Allan | 7 |
#3 | Richardson Robert D | 6 |
#4 | Holley William E | 5 |
#5 | Manfredi Louis | 4 |
#6 | Deam David | 3 |
#7 | Donahue Joel | 2 |
#8 | Gjertsen John Sr | 2 |
#9 | Deam David R | 2 |
#10 | Gjertsen Sr John | 2 |
Publication | Filing date | Title |
---|---|---|
AU3148893A | Variable speed wind turbine with reduced power fluctuation and a static var mode of operation | |
EP0551450A1 | Four quadrant motor controller | |
US5187427A | Static reactive power compensator | |
US5155375A | Speed control system for a variable speed wind turbine | |
US5172310A | Low impedance bus for power electronics | |
US4426192A | Method and apparatus for controlling windmill blade pitch | |
US4469956A | Windmill support structure | |
US4474531A | Windmill with direction-controlled feathering | |
CA1188622A | Windpower system | |
US4490093A | Windpower system |