ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,750, issued on Nov. 25, was assigned to ResMed Pty Ltd (Bella Vista, Australia).

"Vents for patient interfaces" was invented by Muditha Pradeep Dantanarayana (Sydney), Michael Christopher Hogg (Sydney) and Stewart Joseph Wagner (Sydney).

According to the abstract* released by the U.S. Patent & Trademark Office: "The technology relates to a vent for a respiratory therapy system. The vent comprises a vent body having formed therein a plurality of slots allowing a vent flow of exhaled gases to ambient. The slots have a length, a width and a height. In examples the width of each slot is significantly greater than the height and the slots are arranged such that the widths of the slots...