ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,490, issued on Oct. 14, was assigned to ResMed Inc. (San Diego).

"System and method for tracking medical device usage" was invented by Timothy Semen (Wollstonecraft, Australia), Natalie Zotelo (Sydney), Peter Delangre (Sydney), Samuel Robert Cavenagh (Seattle), Charles Fordwich Blaxland (Artarmon, Australia) and Daniel Mark Livolsi (Redfern, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system provides medical device data to a system user. The medical device data is provided as an icon indicating compliance or non-compliance by the medical device user in connection with a predetermined set of usage criteria. Compliance is calculated bas...