Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11992720 | Cartridge status indicator | — | 2024-05-28 |
| 11639476 | Steam/carbon ratio detection and control | John L. Preston | 2023-05-02 |
| 9461328 | Solid oxide fuel cell power plant having a bootstrap start-up system | — | 2016-10-04 |
| 8623561 | Acid dilution device in condenser of phosphoric acid fuel cell | Thomas Bruce Avis, Kazuo Saito, Ricardo O. Brown | 2014-01-07 |
| 8343256 | Integrated contaminant separator and water-control loop for a fuel reactant stream | Derek W. Hildreth, John L. Preston | 2013-01-01 |