ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,015, issued on Feb. 10, was assigned to AMCOR FLEXIBLES NORTH AMERICA INC. (Neenah, Wis.).

"Barrier paper packaging film" was invented by Nils De Rybel (Destelbergen, Belgium), Peter Ettridge (Worcester, Great Britain), Pieter Cools (Aalter, Belgium), Steven Birch (Worcester, Great Britain) and Paul Stewart (Grange-over-Sands, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A paper-based packaging film comprising a fiber-based component, a polymeric film comprising a thickness from 2 micron and 8 micron, the polymeric film coated with a barrier material comprising a metal, a metal oxide or an inorganic oxide, a layer comprising a heat s...