ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,704, issued on April 14, was assigned to Analog Devices International UnLtd. Co. (Limerick, Ireland).

"System and method for measurement of ion concentration in fluid samples" was invented by Eoin Seamus Bolger (Limerick, Ireland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signal is obtained which comprises voltage measurements obtained from the calibration fluid and voltage measurements obtained from the unknown fluid. Diffusion of the measurements during the transition from measuring the calibration fluid to measuring the unknown fluid is modelled using a first model. The drift of the measurements is modelled from the calibration fluid measu...