ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,709,069, issued on Aug. 18, was assigned to Tetra Laval Holdings & Finance S.A. (Pully, Switzerland).
"Method for producing packages, an apparatus and a kit of parts" was invented by Patrik Palmquist (Lund, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing packages is presented. The method comprises providing a web of packaging material comprising at least an outer protective layer, a cellulose-based mid-layer and an inner protective layer, providing a protective strip, heating a first longitudinal edge section of an inside surface of the web by applying a first flow of heated air via a first nozzle, heating a first longitudin...