ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,676, issued on May 19, was assigned to Wisconsin Alumni Research Foundation (Madison, Wis.).

"Method for tuning an electrochemical double layer to generate sound representative of properties of the double layer" was invented by Marcel Schreier (Pfeffingen, Switzerland), Christine Lucky (Madison, Wis.) and Megan Kelly (Madison, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method (and corresponding apparatus) of analyzing the behavior of an electrochemical double layer (EDL) by replacing a classic capacitor in an astable multivibrator circuit with an electrochemical cell. By pushing the EDL into resonance, the induced charging and discharging ...