ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,598, issued on May 19, was assigned to LABCYTE INC. (San Jose, Calif.).

"Determining acoustic characteristics of sample containers and fluid samples therein using reflected acoustic signals" was invented by J. James Esplin (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application relates to a liquid transfer system capable of using ultrasonic sound signals to transfer liquid samples from a first container to a second container as well as using ultrasonic sound signals to measure the characteristics of both the liquid and the first container. The system uses a transducer to transmit a plurality of sound signals and recei...