ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,917, issued on March 25, was assigned to RESILIENT POWER SYSTEMS INC. (Athens, Ga.).

"Systems, apparatus and methods for electric vehicle charging via a power conversion system" was invented by Josh Keister (Atlanta), Lyle T. Keister (Athens, Ga.) and Mehdi Abolhassani (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment, an EV charging system includes: a plurality of first converters to receive and convert grid power at a distribution grid voltage to at least one second voltage; a high frequency transformer coupled to the first converters to receive the at least one second voltage and output at least one high frequency AC volt...