ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,470, issued on June 23, was assigned to Fisher & Paykel Healthcare Ltd. (Auckland, New Zealand).

"Nasal mask interface assembly" was invented by Craig Robert Prentice (Auckland, New Zealand), Bernard Tsz Lun Ip (Auckland, New Zealand), Richard John Boyes (Auckland, New Zealand), Thomas Mark Richardson (Auckland, New Zealand) and Gareth Thomas McDermott (Auckland, New Zealand).

According to the abstract* released by the U.S. Patent & Trademark Office: "An interface assembly comprises a nasal mask that includes a seal having a rolling portion. The rolling portion of the seal rolls over a portion of a clip that secures the seal to a frame. The frame has a ball and socket connection ...