ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,858, issued on March 4, was assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (Paris).

"Oxygen potentiometric probe, for the measurement of the oxygen concentration of a liquid metal, application to the measurement of oxygen in liquid sodium of a nuclear reactor of type RNR-Na" was invented by Laurent Brissonneau (Venelles, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A potentiometric oxygen sensor for measuring an oxygen concentration of a liquid metal, which includes a metal tube forming at least one sensor body part, an electrochemical subassembly, and an insert made of a transition metal from group 4 of the Peri...