Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6890677 | Fuel cell and membrane | Alan P. Sylwester, Gail N. Ryba, Thomas E. Zipperian, Stanley H. Kravitz, Andrew Hecht | 2005-05-10 |
| 6841290 | Fuel cell and membrane | Alan P. Sylwester, Gail N. Ryba, Thomas E. Zipperian, Stanley H. Kravitz, Andrew Hecht | 2005-01-11 |