ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,644, issued on March 18, was assigned to Khalifa University of Science and Technology (Abu Dhabi, United Arab Emirates).

"Fluid flow monitoring in hydrocarbon reservoirs using magnetic nanoparticles" was invented by Saeed Alhassan Alkhazraji (Abu Dhabi, United Arab Emirates), Vassilios Tzitzios (Paraskevi, Greece), Georgios Papavassiliou (Paraskevi, Greece), Marina Karagianni (Paraskevi, Greece), Athanasios Anastasiou (Paraskevi, Greece), Savvas Orfanides (Athens, Greece), Michael Fardis (Paraskevi, Greece), Dimitrios Gournis (Ioannina, Greece) and Mohammed Subrati (Abu Dhabi, Greece).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein a...