ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,754,242, issued on Oct. 6, was assigned to LG ENERGY SOLUTION LTD. (Seoul, South Korea).

"Power bank having function for providing rechargeable range of battery pack, battery pack charging system comprising same, and method therefor" was invented by Kee Hoon Song (Daejeon, South Korea), Jun Suk Kim (Daejeon, South Korea) and Hyo Seong An (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a power bank having a function of providing a chargeable range of a battery pack, a battery pack charging system including the same, and a method therefor, and more particularly, to a battery pack charging system that pr...