ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,435, issued on July 22, was assigned to PHOENIXDARTS Co. LTD (Seoul, South Korea).

"Dart game apparatus and dart game system comprising illumination unit" was invented by Sang Uk Hong (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a dart game apparatus and a dart game system with an illumination unit. The dart game apparatus includes: a dart target having a plurality of score areas; a sensing unit sensing a hit location of a dart pin in the dart target; a display area formed to surround an exterior of the dart target, provided in a body structure of the dart game apparatus, and disposed to output a variable screen t...