Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5183386 | Vertical axis sail bladed wind turbine | Lewis Feldman | 1993-02-02 |
| 5171127 | Vertical axis sail bladed wind turbine | Lewis Feldman | 1992-12-15 |
| 4446383 | Reference voltage generating circuit | Charles K. Erdelyi | 1984-05-01 |