Assignee
EARTH TO AIR SYSTEMS LLC
US·13 granted patents·2 pending applications·475 citations·filing 2003–2013
Top patents by PatentIndex Score
15 records- 0198US7234314B1Geothermal heating and cooling system with solar heatingEARTH TO AIR SYSTEMS LLC·Filed 2003·Granted Jun 26, 2007·157 cites·9 claims
- 0293US7856839B2Direct exchange geothermal heating/cooling system sub-surface tubing installation with supplemental sub-surface tubing configurationEARTH TO AIR SYSTEMS LLC·Filed 2006·Granted Dec 28, 2010·26 cites·19 claims
- 0392US7591145B1Heat pump/direct expansion heat pump heating, cooling, and dehumidification systemEARTH TO AIR SYSTEMS LLC·Filed 2004·Granted Sep 22, 2009·61 cites·26 claims
- 0492US7191604B1Heat pump dehumidification systemEARTH TO AIR SYSTEMS LLC·Filed 2004·Granted Mar 20, 2007·51 cites·31 claims
- 0591US7146823B1Horizontal and vertical direct exchange heating/cooling system sub-surface tubing installation meansEARTH TO AIR SYSTEMS LLC·Filed 2004·Granted Dec 12, 2006·44 cites·17 claims
- 0690US7578140B1Deep well/long trench direct expansion heating/cooling systemEARTH TO AIR SYSTEMS LLC·Filed 2004·Granted Aug 25, 2009·49 cites·12 claims
- 0787US7832220B1Deep well direct expansion heating and cooling systemEARTH TO AIR SYSTEMS LLC·Filed 2004·Granted Nov 16, 2010·38 cites·18 claims
- 0883US10443909B2Sub-surface insulation and well depth reduction for DX geothermal heat pump and refrigeration systemEARTH TO AIR SYSTEMS LLC·Filed 2012·Granted Oct 15, 2019·4 cites·7 claims
- 0983US7886558B2Method and apparatus for inhibiting frozen moisture accumulation in HVAC systemsEARTH TO AIR SYSTEMS LLC·Filed 2005·Granted Feb 15, 2011·7 cites·14 claims
- 1083US7401641B1Vertically oriented direct exchange/geothermal heating/cooling system sub-surface tubing installation meansEARTH TO AIR SYSTEMS LLC·Filed 2004·Granted Jul 22, 2008·25 cites·9 claims
- 1170US8033127B2Direct exchange system design improvementsEARTH TO AIR SYSTEMS LLC·Filed 2008·Granted Oct 11, 2011·3 cites·22 claims
- 1265US7841383B2Encasement assembly for installation of sub-surface refrigerant tubing in a direct exchange heating/cooling systemEARTH TO AIR SYSTEMS LLC·Filed 2006·Granted Nov 30, 2010·3 cites·24 claims
- 1357US7841200B1Sub-surface tubing spacer means for direct expansion heating/cooling systemsEARTH TO AIR SYSTEMS LLC·Filed 2004·Granted Nov 30, 2010·7 cites·11 claims
- 1451US2011209848A1Heat Transfer Refrigerant Transport Tubing Coatings and Insulation for a Direct Exchange Geothermal Heating/Cooling System and Tubing Spool Core SizeEARTH TO AIR SYSTEMS LLC·Filed 2009·Application pending·0 cites
- 1549US2015013370A1Ground Loops and Insulation for Direct Exchange Geothermal SystemsEARTH TO AIR SYSTEMS LLC·Filed 2013·Application pending·0 cites
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