Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11670793 | Fuel cell stack including witness marks and inspection method thereof | Arne Ballantine | 2023-06-06 |
| 11088382 | Fuel cell stack including witness marks and inspection method thereof | Arne Ballantine | 2021-08-10 |