ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,233, issued on Jan. 27.

"Partially underground ventilation system for heating, cooling, and recirculating air of a nearby facility" was invented by Adib Amini (Ames, Iowa).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ventilation system applies geothermal temperature stability for ventilation of air in facilities near outdoor spaces. For example, there are a large number of wastewater treatment facilities built or renovated each year, with significant work on ventilation. The ventilation system therefore has significant potential for application and improvement of infrastructure."

The patent was filed on Jan. 31, 2023, under Application No. 18/16...