Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10215425 | Gas fired modular blower control and associated methodology | Michael W. Branson, Kelvin W. Kleman, Timothy B. Hawkins | 2019-02-26 |
| 9651268 | Gas fired modular blower control and associated methodology | Michael W. Branson, Kelvin W. Kleman, Timothy B. Hawkins | 2017-05-16 |
| 5964579 | Prestressed resilient compressor mount apparatus | Punan Tang, Ronald J. Rasmussen | 1999-10-12 |
| 5799689 | Tubular refrigerant check valve with idented outer housing portion | Punan Tang | 1998-09-01 |
| 5492456 | Fan motor/impeller mounting system | John T. Knight, Jeffrey Lyons | 1996-02-20 |
| 5271376 | Serpentined tubular heat exchanger apparatus for a fuel-fired forced air heating furnace | Lin Lu, Ali Shenasa, Gallen W. Stokes | 1993-12-21 |
| 5178124 | Plastic secondary heat exchanger apparatus for a high efficiency condensing furnace | Lin Lu, Ali Shenasa, Gallen W. Stokes | 1993-01-12 |