ALEXANDRIA, Va., April 2 -- United States Patent no. 12,263,997, issued on April 1, was assigned to Winpak Ltd. (Winnipeg, Canada).

"Closure system with barrier layer" was invented by Manuel Jose Moreno Brociner (Winnipeg, Canada), Mustafa Bilgen (Fayettville, Ga.), Olivier Yves Muggli (Winnipeg, Canada) and Ashley Robert Andrews (Kleefeld, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A closure system including a cap and a spout, where the cap and/or spout contain at least one discrete layer of barrier material. In one example, the spout includes a conduit and a seal member, the conduit being arranged about an imaginary axis and the seal member having one or more surfaces configured to be secured to...