ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,663, issued on May 27, was assigned to POSCO (Pohang-si, South Korea).
"Chromium steel having excellent high-temperature oxidation resistance and high-temperature strength, and method of manufacturing same" was invented by Hyun-Je Sung (Pohang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are chromium steel having excellent high-temperature oxidation resistance and high-temperature strength, and a method of manufacturing same. The present invention relates to chromium steel, having excellent high-temperature oxidation resistance and high-temperature strength, which comprises, by weight %, 0.1% or less of C (not including 0%...