US Patent Issued to KINGDREAM, SINOPEC OILFIELD EQUIPMENT on Feb. 10 for "Impact-resistant multi-cutting-edge diamond compact and earth-boring tool" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,170, issued on Feb. 10, was assigned to KINGDREAM PLC (Wuhan, China) and SINOPEC OILFIELD EQUIPMENT Corp. (Wuhan, China).

"Impact-resistant multi-cutting-edge diamond compact and earth-boring tool" was invented by Guanfu Tu (Hubei, China), Xia Yang (Hubei, China) and Fang Xu (Hubei, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides an impact-resistant multi-cutting-edge diamond compact, comprising a cylindrical cemented carbide substrate (102) and a diamond composite layer (101) being disposed at a top end of the cemented carbide substrate, wherein at least two sections of different chamfers (103, 104) are provided...