ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,360, issued on Sept. 23, was assigned to EVERCHEMTECH Co. LTD. (Hwaseong-si, South Korea).

"Oxygen barrier film, food packaging material comprising same, and method for producing oxygen barrier film" was invented by So Hyeon Cho (Seoul, South Korea), Na Young Pak (Suwon-si, South Korea), Young Ju Choi (Yongin-si, South Korea) and Chan Suk Yoon (Jeonju-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are an oxygen barrier film, a food wrapper including the same, and a method of preparing the oxygen barrier film. The oxygen barrier film may include: a base layer; and an organic/inorganic hybrid layer located on the base layer a...