ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,925, issued on July 1, was assigned to AMAZON TECHNOLOGIES INC. (Seattle).

"Radio frequency antenna for wearable device" was invented by Leo Benedict Baldwin (Seattle) and David Heckerman (Bellevue, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Data about concentration of one or more types of molecules present within a human body are determined noninvasively using radio frequency signals. These signals at several different frequencies are generated at very low power levels are emitted and acquired using an antenna mounted to a wearable device. Information about changes to the signals, such as phase variances of the signals at different frequen...