ALEXANDRIA, Va., July 16 -- United States Patent no. 12,670,778, issued on June 30.
"Drowning prevention system" was invented by Vivek Sandrapaty (Ocala, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drowning prevention system includes an alerting device worn on the body of a person which monitors the person's blood oxygen level. When the alert device is submerged, if the person's blood oxygen level falls below a threshold, then the alert device will begin emitting an alert sound. The alert sound will be picked up or otherwise detected by one or more hydrophones in the water. The hydrophone output is constantly monitored to determine if the alert sound is occurring in the water. If an alert sound is ...