ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,402,648, issued on Sept. 2, was assigned to Philip Morris Products S.A. (Neuchatel, Switzerland).
"Aerosol generating article with heat-expandable centering element" was invented by Fabien Duc (Neuchatel, Switzerland), Alexandre Malgat (Neuchatel, Switzerland) and Jerome Uthurry (Neuchatel, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "An aerosol-generating article for producing an inhalable aerosol when heated is provided, the aerosol-generating article including: a rod of aerosol-generating substrate; a wrapper circumscribing at least the rod; and at least one heat-expandable element disposed on an outer surface of the wrapper. An aerosol...