ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,911, issued on Feb. 3, was assigned to Sensorex Corp. (Garden Grove, Calif.).
"Auto-calibration pH sensor" was invented by Alex D. Smith (La Habra, Calif.), Albert Haizhen Zhou (Diamond Bar, Calif.), Jose Tafolla (Wilmington, Calif.), Michael Francis Ross (Huntington Beach, Calif.) and Hamed Shadpour (Mission Viejo, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pH sensor comprising pH sensing instrumentation, reference sensing instrumentation, an electrochemical junction, and a pH determination unit. The pH sensing instrumentation comprises a pH fluid, a pH fluid chamber, a pH sensing chamber, and a measuring electrode extending through the...