Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824874 | Insulator and seal for fuel cell assemblies | Frank Popielas, Brent R. Boldt, Dennis F. Person | 2004-11-30 |
| 6730363 | Epoxy nitrile insulator and seal for fuel cell assemblies | Frank Popielas, Dennis F. Person | 2004-05-04 |