ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,839, issued on July 15, was assigned to ZOLL Medical Corp. (Chelmsford, Mass.).

"Remote monitoring devices and related methods and systems with audible AED signal listening" was invented by Adrian A. Alvarez (Huntley, Ill.), Ross G. Krogh (Long Grove, Ill.) and Douglas J. Newlin (Wheaton, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A remote monitoring device and related systems and methods for monitoring and managing by a monitoring service via a communications network a condition of an automated external defibrillator (AED) based on audio signals from the AED. The remote monitoring device includes a housing configured to be positioned outsi...