ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,630, issued on Oct. 28, was assigned to ADVANCED NANO PRODUCTS Co. LTD. (Sejong, South Korea).

"Dispersion composition of cerium oxide composite powder" was invented by Se Ho Song (Sejong, South Korea), Moon Sung Cho (Sejong, South Korea) and Jung Wan Kim (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Proposed are cerium oxide composite powder and a dispersion composition containing the same powder. The powder includes two types of cerium oxide particles satisfying different specific particle size ranges. When the average density of the cerium oxide composite powder in a dispersion composition solution is controlled to be in a ...