Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7637721 | Methods and apparatus for producing wind energy with reduced wind turbine noise | Howard D. Driver | 2009-12-29 |
| 7458777 | Wind turbine rotor assembly and blade having acoustic flap | — | 2008-12-02 |