Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9777941 | Heat recovery ventilator and rotary damper assembly | Joel A. Grimaldi | 2017-10-03 |
| 9574527 | Fresh air system component | Thomas Zirkelbach | 2017-02-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9777941 | Heat recovery ventilator and rotary damper assembly | Joel A. Grimaldi | 2017-10-03 |
| 9574527 | Fresh air system component | Thomas Zirkelbach | 2017-02-21 |