US Patent Issued to Oura Health on Sept. 1 for "Sleep age determination from wearable-based physiological data" (Washington Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,721,568, issued on Sept. 1, was assigned to Oura Health Oy (Oulu, Finland).

"Sleep age determination from wearable-based physiological data" was invented by Jake Harris Sherman (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, systems, and devices for determining a sleep age metric of a user are described. The system may receive photoplethysmogram (PPG) data throughout a time interval including a plurality of sleep intervals during which the user is asleep, input the PPG data into a first machine learning model, and classify the PPG data into a plurality of sleep stages. The system may input one or more sleep features into a second machin...