Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5219674 | Sealant for porous fuel cell component frames using polymerization of monomers | James D. Singelyn | 1993-06-15 |
| 4845840 | Electrode substrate with integral edge seal and method of forming the same | Richard J. Roethlein | 1989-07-11 |
| 4786568 | Electrode substrate with integral edge seal and method of forming the same | Richard J. Roethlein | 1988-11-22 |