ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,710, issued on Nov. 11, was assigned to Fisher & Paykel Healthcare Ltd. (Auckland, New Zealand).

"Thermoformed mask" was invented by Jeroen Hammer (Auckland, New Zealand), Adam Alexander Tebbutt (Auckland, New Zealand) and Andrew Chun Mon Fan (Auckland, New Zealand).

According to the abstract* released by the U.S. Patent & Trademark Office: "Respiratory masks made of thermoformed EVA foam are provided. A mask can include a seal that contacts a user's face in use and a housing permanently joined to the seal. Both the seal and housing can be made of EVA foam. The seal and housing can be made of EVA foam having different densities. The mask can further include a frame removably or p...