Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11040306 | Fuel tank inerting system | Bart Antonie van Hassel, Michael L. Perry | 2021-06-22 |
| 10954100 | Lithium-ion battery charging system for a battery powered elevator system | Andrew Smeltz | 2021-03-23 |
| 10944108 | Graphite-containing electrode and method related thereto | — | 2021-03-09 |
| 10892499 | Flow battery flow field having volume that is function of power parameter, time parameter and concentration parameter | Andrew Smeltz, Michael L. Perry, Zhongfen Ding | 2021-01-12 |