Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6787263 | Method and apparatus for establishing a negative pressure inside an enclosure that houses a fuel cell system | Michael M. Walsh, Robert S. Traver, George M. Allen | 2004-09-07 |
| 6761987 | Fuel cell system having an energy source backup | James F. McElroy | 2004-07-13 |