ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,592, issued on Aug. 5, was assigned to Fina Technology Inc. (Houston).

"Use of metallocene based polypropylene random copolymers in blown films" was invented by Leonardo Cortes (League City, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of making a film by coextruding a multi-layer structure comprising at least one skin layer comprising a metallocene-based polypropylene random copolymer. A coextruded multi-layer film comprising at least one skin layer comprising a metallocene-based polypropylene random copolymer, and a flexible package compromising such a coextruded multi-layer film are also provided."

The patent was filed on Nov. 14...