ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,764, issued on Dec. 16, was assigned to Bixby International Corp..

"Extrusion perforation system and method" was invented by Ethel Bermejo (Somerville, Mass.), Marc Gagnon (Exeter, N.H.), Chris Van Remoortel (Marblehead, Mass.), Robert Law (Haverhill, Mass.), Rachel Lucier (Lynn, Mass.) and Aaron Arsenault (Leominster, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An extrusion system includes a system to pump a thermoplastic resin melt through an extrusion die, the thermoplastic resin including a polymer base whose rheological properties are modified using fillers, a perforation/embossed roll, and a resilient/pressure backing nip roll through...