Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6949308 | Gas diffusion substrate | Graham Alan Hards, Karen Hogarth, Thomas Robertson Ralph, Stephen J. Edwards, Nigel Julian Walker | 2005-09-27 |
| 6936370 | Solid polymer fuel cell with improved voltage reversal tolerance | Shanna Knights, David P. Wilkinson, Stephen A. Campbell, Jared L. Taylor, Thomas Ralph | 2005-08-30 |