Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12173942 | Method of operating a heat pump system | Charles A. Cluff | 2024-12-24 |
| 11215388 | Refrigerant charge management | Matthew Austin, Mark W. Shoemaker | 2022-01-04 |
| 11022357 | System and method of operating a variable speed compressor with a two-stage controller | Matthew Austin | 2021-06-01 |
| 10928080 | Climate control outdoor unit with inverter cooling | Mark W. Shoemaker | 2021-02-23 |
| 10557667 | Refrigerant to water heat exchanger | Mark W. Shoemaker | 2020-02-11 |
| 10006670 | Method for managing a refrigerant charge in a multi-purpose HVAC system | Matthew Austin, Aaron M. Bright | 2018-06-26 |
| 9732998 | Method and system of using a reversing valve to control at least two HVAC systems | Matthew Austin | 2017-08-15 |
| 9488384 | Heat pump water module with condensing coil in water storage tank | — | 2016-11-08 |
| 8267156 | Streamlined orifice of outdoor unit | Yu-Qi Wang, Larry D. Burns, Loren D. Hoffman, Duane V. Douglas, William Bruce Sutherlin +2 more | 2012-09-18 |
| 7708052 | Coil support | Christopher J. Ingermann, Loren D. Hoffman, Frank J. David, John A. Wade, Larry D. Burns +2 more | 2010-05-04 |
| D562122 | Corner top clip | Larry D. Burns, Loren D. Hoffman, Frank J. David | 2008-02-19 |
| D538724 | Tri-spoke motor cap | Frank J. David, Brian L. DePerro | 2007-03-20 |
| 6260709 | Membrane filter element for chemical-mechanical polishing slurries | Alfred K. Fritzsche | 2001-07-17 |