US Patent Issued to NATIONAL CHENG KUNG UNIVERSITY on Dec. 16 for "Artificial tanzanite and its manufacturing method" (Taiwanese Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,300, issued on Dec. 16, was assigned to NATIONAL CHENG KUNG UNIVERSITY (Tainan, Taiwan).

"Artificial tanzanite and its manufacturing method" was invented by Yen-Hua Chen (Tainan, Taiwan) and Jia-Cheng Ni (Tainan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An artificial tanzanite comprises aluminosilicate and vanadium, wherein the content of the aluminosilicate is in a range from 1 mass % to 30 mass % and the content of the vanadium is in a range from 1000 ppm to 40000 ppm. The artificial tanzanite is prepared by a method comprising: providing a synthetic raw material, wherein the synthetic raw material comprises the aluminosilicate, silic...