| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | Canada | 2 | |
| #4 | Norway | 2 | |
| #5 | Argentina | 1 | |
| #6 | Australia | 1 | |
| #7 | Brazil | 1 | |
| #8 | Mexico | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Electrical machinery and energy | |
| #3 | Environmental technology | |
| #4 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Erdman William L | 9 |
| #2 | Christenson Craig L | 7 |
| #3 | Cousineau Kevin L | 7 |
| #4 | Mikhail Amir S | 7 |
| #5 | Holley William E | 5 |
| #6 | Lipo Thomas A | 4 |
| #7 | Li Yue | 4 |
| #8 | Richardson Robert D | 2 |
| #9 | Hallidy William M | 1 |
| #10 | Wetzel Kyle K | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6420795B1 | Variable speed wind turbine generator | |
| US6503058B1 | Air foil configuration for wind turbine | |
| US6137187A | Variable speed wind turbine generator | |
| EP0700596A1 | Variable speed constant frequency synchronous electric power generating system and method of using same | |
| US5083039A | Variable speed wind turbine |