US Patent Issued to Georg Fischer Signet on June 23 for "pH sensor measurement" (California, Texas Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,393, issued on June 23, was assigned to Georg Fischer Signet LLC (Irwindale, Calif.).

"pH sensor measurement" was invented by Jun Huang (Rowland Heights, Calif.), Calin Ciobanu (Brea, Calif.), Geordon Alexander Worley (Austin, Texas) and Jerome Brent Ford (Placentia, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is provided for measuring the impedance of a pH sensor electrode. The method includes applying a positive voltage pulse to the pH electrode and taking a plurality of samples of the sensor voltage response and, from those samples, estimating the impedance of the sensor electrode. Then, a negative voltage pulse width is dynami...