ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,626, issued on July 28, was assigned to INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (Hsinchu, Taiwan).

"Apparatus for producing ingot" was invented by Yun-Feng Chen (Changhua County, Taiwan), Ping-Kuan Chang (Tainan City, Taiwan), Shui-Chin Liu (Tainan City, Taiwan), Ming-Tsun Kuo (Hsinchu County, Taiwan) and Sung-Yu Chen (Taichung City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for producing an ingot includes a crucible and a lid. The crucible, as a cylindrical container for accommodating a raw crystal-growing material, has an annular top edge further having an annular non-90deg first guiding part. The lid provides a bottom fo...