ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,694, issued on March 3, was assigned to VAPOTHERM INC. (Exeter, N.H.).
"Quiet nasal cannula" was invented by Felino V. Cortez Jr. (Bowie, Md.), William F. Niland (Arnold, Md.) and George McGarrity (Centreville, Md.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Devices for providing respiratory therapy to a patient are disclosed. One device Includes first and second elongated lumens and a nosepiece. The elongated lumens each have a constant internal diameter. The nosepiece portion has a third lumen and a fourth lumen. The third and fourth lumens have constant internal diameters equal to those of the first and second lumens. The third and fourth lume...