Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11069351 | Vehicle voice user interface | — | 2021-07-20 |
| 8785067 | Wax elements as passive control devices in fuel cell power systems | John J. Conley, David A. Masten, Bruce J. Clingerman | 2014-07-22 |
| 8192881 | Control method for cold fuel cell system operation | Matthew C. Kirklin, Bruce J. Clingerman | 2012-06-05 |
| 7811713 | Thermal control of cathode inlet air flow for a fuel cell system | Jason R. Kolodziej, Seth E. Lerner, Steven D. Burch | 2010-10-12 |
| 7651806 | Non-flammable exhaust enabler for hydrogen powered fuel cells | Daryl Chapman, David A. Masten, Norm Dill, Robert Schafer, Daniel B. O'Connell +1 more | 2010-01-26 |
| 7063905 | Fuel cell H2 exhaust conversion | Norman Dill, Daryl Chapman | 2006-06-20 |