Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10118463 | HVAC system with positive temperature coefficient varying along length of heat rod | Curt Raymond O'Donnell | 2018-11-06 |
| 9855823 | HVAC system with positive temperature coefficient varying along length of heat rod | Curt Raymond O'Donnell | 2018-01-02 |