ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,683, issued on Oct. 14, was assigned to Medtronic Inc. (Minneapolis).

"Medical device and method for estimating time between voltage levels of a power source" was invented by Jenna M. S. Pender (Saint Paul, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A medical device system and method estimate a time from a first voltage of a power source of a medical device to a second voltage of the power source. The medical device includes a sensor coupled to the power source for generating a physiological signal. The medical device system determines a current drain from the power source required for generating the physiological signal and/or processing ...