ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,645, issued on Feb. 17, was assigned to Regents of the University of Minnesota (Minneapolis).
"Groundwater enhanced geothermal heat pump" was invented by Jimmy Bryan Randolph (Minneapolis), Scott Alexander (Minneapolis) and Martin Saar (Zurich).
According to the abstract* released by the U.S. Patent & Trademark Office: "A geothermal heat pump system includes a main heat exchanger, a borehole that extends in a vertical direction through an aquifer, a ground loop and a pump. The main heat exchanger is configured to exchange heat between a ground loop flow and a heat distribution system. The ground loop includes a groundwater heat exchanger, an input pipe and an output pipe. The gro...