Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10852071 | Method of operating an energy recovery system | Eric W. Adams | 2020-12-01 |
| 10775071 | Energy recovery ventilator | Daniel J. Dempsey | 2020-09-15 |
| 10760856 | Accessory installation to a heating or cooling system | Kent Kuffner | 2020-09-01 |