ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,382, issued on June 23, was assigned to SF Diamond Co. Ltd (Zhengzhou Ha, China).

"Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom" was invented by Haijang Fang (Zhengzhou, China), Weifeng Du (Zhengzhou, China), Yongfeng Wang (Zhengzhou, China) and Dongpeng Zhao (Zhengzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polycrystalline element includes a table formed of polycrystalline diamond. The table includes a first surface; a second surface spaced apart from the first surface; and at least one side extending between the first surface and the second surface. The table also includes a plurality of ...