ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,881, issued on Aug. 25, was assigned to Kunming University of Science and Technology (Kunming City, China).

"Characteristic element combination anomaly derivative method of determining occurrence of deep concealed plate-shaped ore body of hydrothermal deposit" was invented by Runsheng Han (Kunming City, China), Yan Zhang (Kunming City, China), Wenyao Li (Kunming City, China) and Qing Chen (Kunming City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a characteristic element combination anomaly derivative method of determining occurrence of a deep concealed plate-shaped ore body of a hydrothermal deposit. The method determines the s...