ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,721,545, issued on Sept. 1, was assigned to Starkey Laboratories Inc. (Eden Prairie, Minn.).

"Alertness determination for non-alert detection using ear-worn electronic devices" was invented by Justin R. Burwinkel (Eden Prairie, Minn.), Kyle Olson (St. Louis Park, Minn.), Jeffrey Paul Solum (Greenwood, Minn.), Yoshi Kasahara (Chaska, Minn.), Gregory J. Haubrich (Champlin, Minn.) and Christine Tan (Eden Prairie, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques to detect a non-alert state of a user may include receiving sensor data from an ear-worn electronic device disposed at least partially in the ear of a user, determining an alertness s...