ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,794, issued on Oct. 21, was assigned to GE ENERGY POWER CONVERSION TECHNOLOGY Ltd. (Warwickshire, Great Britain).

"Hybrid modular multi-level converter (HMMC) and modular multi-level converter (MMC)" was invented by Zhi Zhou (Bethlehem, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are modular multilevel converter and hybrid modular multilevel converters. Each of the modular multilevel converters and hybrid modular multilevel converters include submodules. Each submodule includes a first half bridge converter, a second half bridge converter, and a dual active bridge converter having a first connection, a second connection, a third con...