ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,990, issued on June 3, was assigned to Sandvik Mining and Construction Tools AB (Sandviken, Sweden).
"Gradient cemented carbide body and method of manufacturing thereof" was invented by Mirjam Lilja (Stockholm), Ida Borgh (Vastberga, Sweden), Ioannis Arvanitidis (Stockholm), Leif Akesson (Vastberga, Sweden), Xueying Hai (Vastberga, Sweden) and Susanne Norgren (Vastberga, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a method of making a cemented carbide mining insert, a cemented carbide mining insert with having a chemical and hardness gradient and to the use thereof. The method includes the steps of providin...