Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12407220 | Electricity generating backpack with adaptive electronics for warming batteries in cold temperatures | Sean McIntosh, Heath F. Hofmann | 2025-09-02 |
| 11253047 | Suspended load backpack | Sean McIntosh | 2022-02-22 |
| 8564144 | Light-weight human generated electricity | Haldun Komsuoglu, Gerald I. Marron, Rajid Rana | 2013-10-22 |
| 7931178 | Suspended load ergonomic backpack | Andy L Ruina | 2011-04-26 |
| 7851932 | Backpack based system for human electricity generation and use when off the electric grid | Heath F. Hofmann, Guanghui Wang | 2010-12-14 |
| 7391123 | Backpack for harvesting electrical energy during walking and for minimizing shoulder strain | — | 2008-06-24 |
| 6982497 | Backpack for harvesting electrical energy during walking and for minimizing shoulder strain | — | 2006-01-03 |