Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11063450 | System and method for closed-transition transfer of DC battery banks on a grid scale battery energy storage system | David Porter | 2021-07-13 |
| 10958074 | Distributed energy storage system and method of distributing energy | Donald S. Berkowitz, David Porter, Terrence Bellei, James W. Sember | 2021-03-23 |