Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11335940 | Fuel cell stack | Charles M. Carlstrom, Jr., James M. D'Aleo, Charles R. Elder | 2022-05-17 |
| 10615445 | Fuel cell stack | Charles M. Carlstrom, Jr., James M. D'Aleo, Charles R. Elder | 2020-04-07 |
| 8771884 | Reactant conditioning scheme for fuel cell systems | Ranjieve A. Williams, Charles R. Elder | 2014-07-08 |