Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9151273 | Solar tree with optional wind turbine generator | Frank L. Christy, Stephen C. Keiser, Rod Arter | 2015-10-06 |
| 8487469 | Solar wind tree | Frank L. Christy, Stephen C. Keiser | 2013-07-16 |