ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,904, issued on June 17, was assigned to APTAR FRANCE SAS (Le Neubourg, France).
"Nasal powder delivery device" was invented by Ludovic Petit (Vitot, France) and Franck Poullain (La Haye Malherbe, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A nasal delivery device for a powder, having a reservoir, a delivery head and an air discharge system generating a flow of compressed air. The air discharge system has an air chamber, formed by a hollow axial cylinder, and a piston that sealingly slides in the air chamber to compress the air. The hollow axial cylinder has a radial shoulder connecting a first cylinder portion and a second cylinder portion...