Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10270120 | Fuel cell stack assembly-compression system | David A. Martinchek | 2019-04-23 |
| 9590263 | Fuel cell stack assembly—datum design for fuel cell stacking and collision protection | David A. Martinchek, Robert Thompson | 2017-03-07 |