Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8051668 | Condenser fan control system | Abtar Singh, Thomas Mathews, Frank Brown | 2011-11-08 |
| 7845183 | Variable speed condenser fan control system | Abtar Singh, Thomas Mathews, Frank Brown | 2010-12-07 |
| 7752853 | Monitoring refrigerant in a refrigeration system | Abtar Singh, Thomas Mathews, Stephen T. Woodworth, Pawan K. Churiwal, James R. Mitchell | 2010-07-13 |
| 7246500 | Variable speed condenser fan control system | Abtar Singh, Thomas Mathews, Frank Brown | 2007-07-24 |