US Patent Issued on Sept. 23 for "Method of manufacturing mask having different inner and outer surface structures and mask manufactured by same method" (South Korean Inventor)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,368, issued on Sept. 23.

"Method of manufacturing mask having different inner and outer surface structures and mask manufactured by same method" was invented by Min Gyu Park (Incheon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Proposed is a method of manufacturing a mask and the mask. In the mask, an inner surface sheet and an outer surface sheet have colors different from each other, and a user is capable of wearing the mask by exposing the inner surface sheet to the outside or by exposing the outer surface sheet to the outside. In addition, since a diamond-shaped portion and a linear-shaped portion are provided on the mask, the ap...