Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10655923 | Special cooling coating design for fossil fuel, nuclear, geothermal, and solar heat driven power plants; for HVAC cooling applications; and for heat rejection systems | — | 2020-05-19 |
| 10443909 | Sub-surface insulation and well depth reduction for DX geothermal heat pump and refrigeration system | — | 2019-10-15 |
| 9394771 | Single well, self-flowing, geothermal system for energy extraction | — | 2016-07-19 |
| 8997509 | Frequent short-cycle zero peak heat pump defroster | — | 2015-04-07 |
| 8931295 | Multi-faceted designs for a direct exchange geothermal heating/cooling system | — | 2015-01-13 |
| 8833098 | Direct exchange heating/cooling system | — | 2014-09-16 |
| 8776543 | DX system interior heat exchanger defrost design for heat to cool mode | — | 2014-07-15 |
| 8650875 | Direct exchange geothermal refrigerant power advanced generating system | Richard Thoms | 2014-02-18 |
| 8468842 | DX system having heat to cool valve | — | 2013-06-25 |
| 8402780 | Oil return for a direct exchange geothermal heat pump | — | 2013-03-26 |
| 8109110 | Advanced DX system design improvements | — | 2012-02-07 |
| 8082751 | DX system with filtered suction line, low superheat, and oil provisions | — | 2011-12-27 |
| 8033127 | Direct exchange system design improvements | — | 2011-10-11 |
| 7938904 | Cementitious grout and methods of using same | — | 2011-05-10 |
| 7886558 | Method and apparatus for inhibiting frozen moisture accumulation in HVAC systems | — | 2011-02-15 |
| 7856839 | Direct exchange geothermal heating/cooling system sub-surface tubing installation with supplemental sub-surface tubing configuration | — | 2010-12-28 |
| 7841200 | Sub-surface tubing spacer means for direct expansion heating/cooling systems | — | 2010-11-30 |
| 7841383 | Encasement assembly for installation of sub-surface refrigerant tubing in a direct exchange heating/cooling system | — | 2010-11-30 |
| 7832220 | Deep well direct expansion heating and cooling system | — | 2010-11-16 |
| 7591145 | Heat pump/direct expansion heat pump heating, cooling, and dehumidification system | — | 2009-09-22 |
| 7578140 | Deep well/long trench direct expansion heating/cooling system | — | 2009-08-25 |
| 7401641 | Vertically oriented direct exchange/geothermal heating/cooling system sub-surface tubing installation means | — | 2008-07-22 |
| 7234314 | Geothermal heating and cooling system with solar heating | — | 2007-06-26 |
| 7191604 | Heat pump dehumidification system | — | 2007-03-20 |
| 7146823 | Horizontal and vertical direct exchange heating/cooling system sub-surface tubing installation means | — | 2006-12-12 |