Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8006627 | Cooling systems for hydrogen hybrid locomotives and hydrogen hybrid locomotives using the same | Kris S. Hess, Timothy L. Erickson, James L. Dippo | 2011-08-30 |
| 7971538 | Power management systems for hydrogen hybrid locomotives and hydrogen hybrid locomotives using the same | Kris S. Hess, Timothy L. Erickson, James L. Dippo | 2011-07-05 |
| 7966945 | Isolation and support structures for hydrogen hybrid locomotives and hydrogen hybrid locomotives using the same | Kris S. Hess, Timothy L. Erickson, James L. Dippo | 2011-06-28 |