ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,249, issued on May 20, was assigned to POSCO Co. LTD (Pohang-si, South Korea).

"High-strength structural steel having excellent cold bendability, and manufacturing method therefor" was invented by Jae-Young Cho (Gwangyang-si, South Korea), Il-Cheol Yi (Gwangyang-si, South Korea) and Sang-Deok Kang (Gwangyang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A high-strength structural steel having excellent cold bendability, according to one embodiment of the present invention, comprises, by wt %, 0.02-0.1% of C, 0.01-0.6% of Si, 1.7-2.5% of Mn, 0.005-0.5% of Al, 0.02% or less of P, 0.01% or less of S, 0.0015-0.015% of N, and the balance...