ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,164, issued on Sept. 16, was assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Dhahran, Saudi Arabia).

"Air gap distillation system and heat exchanger" was invented by Dahiru Umar Lawal (Dhahran, Saudi Arabia), Wail Sulaiman Fallatah (Dhahran, Saudi Arabia), Isam Hasan Aljundi (Dhahran, Saudi Arabia) and Mohamed Abdelkarim Antar (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A distillation apparatus having a hot liquid block, a thermoelectric module (TEM), a condensation surface, a feed liquid chamber having a feed chamber inlet, a feed chamber outlet, and a membrane disposed on at least one side of the feed liquid ...