ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,725,509, issued on Sept. 1, was assigned to Intrado Life & Safety Inc. (Longmont, Colo.).

"Wearable panic button" was invented by Nora Ligrani (Denver) and Brian Toolan (Longmont, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method implemented by a management server includes receiving telemetry data related to a sensor of a panic button device; receiving a keypress sequence of the panic button device; determining an event type and a location of the panic button device; and transmitting an emergency request to a public safety access point (PSAP), the emergency request indicating the event type and the location."

The patent was filed on Dec. 11...