ALEXANDRIA, Va., July 23 -- United States Patent no. 12,368,193, issued on July 22, was assigned to LIMINAL INSIGHTS INC. (Emeryville, Calif.).

"Acoustic signal based analysis of batteries" was invented by Barry J. Van Tassell (El Cerrito, Calif.), Shan Dou (Berkeley, Calif.), Shaurjo Biswas (El Cerrito, Calif.), Andrew G. Hsieh (Berkeley, Calif.) and Andrew M. Raphael (El Cerrito, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for acoustic signal based analysis, include obtaining acoustic response signal data of at least a portion of a battery cell, the acoustic response signal data comprising waveforms generated by transmitting one or more acoustic excitation signals into at leas...