ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,214, issued on Sept. 16, was assigned to ANHUI DONGYUN INTELLIGENT ROLLING EQUIPMENT Co. LTD. (Suzhou, China).

"Rolling mechanism, skew rolling mill and method for rolling ultrafine-grained M50NiL rod" was invented by Dong Liu (Suzhou, China), Zhe Zhang (Suzhou, China) and Jianguo Wang (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure provides a rolling mechanism for grain refinement of an M50NiL rod. The rolling mechanism includes two main rolls and two auxiliary rolls. The two main rolls are opposite to each other and the two auxiliary rolls are opposite to each other, and the two main rolls and the two auxiliary rolls ...