ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,897, issued on April 22, was assigned to LS ELECTRIC Co. LTD. (Anyang-si, South Korea).

"Modular multi-level converter" was invented by Chul Kyun Lee (Anyang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a modular multi-level converter, wherein a cluster comprises multiple sub-modules connected to each other in series and multiple individual reactors connected to the respective sub-modules in series, and the multiple individual reactors are disposed between the multiple sub-modules, respectively. Therefore, the converter of the present invention is advantageous in that the volume thereof can be furth...