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Patent applications and USPTO patent grants for Rawlings; John P..The latest application filed is for "subterranean heat exchange units comprising multiple secondary conduits and multi-tiered inlet and outlet manifolds".
Patent | Date |
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Subterranean heat exchange units comprising multiple secondary conduits and multi-tiered inlet and outlet manifolds Grant 5,533,355 - Rawlings July 9, 1 | 1996-07-09 |
Ground source heat pump system comprising modular subterranean heat exchange units with multiple parallel secondary conduits Grant 5,477,914 - Rawlings December 26, 1 | 1995-12-26 |
Ground source heat pump system comprising modular subterranean heat exchange units with multiple parallel secondary conduits Grant 5,372,016 - Rawlings December 13, 1 | 1994-12-13 |
Ground source air conditioning system comprising a conduit array for de-icing a nearby surface Grant 5,081,848 - Rawlings , et al. January 21, 1 | 1992-01-21 |
Parallel piping installation with air by-pass apparatus Grant 4,753,285 - Rawlings June 28, 1 | 1988-06-28 |
Heat exchanger for geothermal heating and cooling systems Grant 4,574,875 - Rawlings , et al. March 11, 1 | 1986-03-11 |
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