Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9716419 | Foot-powered energy generator | Hahna Alexander, Spencer Williams, Sarah Stroup, Arianna Golden | 2017-07-25 |
| 9190886 | Foot-powered energy generator | Hahna Alexander, Spencer Williams, Sarah Stroup, Arianna Golden | 2015-11-17 |
| 8970054 | Foot-powered energy harvesting mechanisms for insoles and shoes | Hahna Alexander, Sarah Stroup, Arianna Golden, Spencer Williams | 2015-03-03 |