Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4695736 | Variable speed wind turbine | Joseph M. Kos, Kermit I. Harner, Eugene D. DiValentin, Henry S. Healy | 1987-09-22 |
| 4515525 | Minimization of the effects of yaw oscillations in wind turbines | — | 1985-05-07 |
| 4353681 | Wind turbine with yaw trimming | — | 1982-10-12 |
| 4329117 | Wind turbine with drive train disturbance isolation | — | 1982-05-11 |