Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12155334 | Systems and methods for controlling fan motors with variable frequency drives | Harold J. Dubensky, James K. Spitzer, Kevin R. Stockton | 2024-11-26 |
| 11754331 | Divider panel for HVAC system | Curtis A. Trammell, Curtis W. Caskey, Zhiwei Huang, Gregory Ulizio | 2023-09-12 |
| 11689145 | Systems and methods for controlling fan motors with variable frequency drives | Harold J. Dubensky, James K. Spitzer, Kevin R. Stockton | 2023-06-27 |
| 11342881 | Systems and methods for controlling fan motors with variable frequency drives | Harold J. Dubensky, James K. Spitzer, Kevin R. Stockton | 2022-05-24 |
| 10833625 | Systems and methods for controlling fan motors with variable frequency drives | Harold J. Dubensky, James K. Spitzer, Kevin R. Stockton | 2020-11-10 |