US Patent Issued to Southwest Petroleum University on July 7 for "Polycrystalline diamond compact bit with large-sized cutters" (Chinese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,361, issued on July 7, was assigned to Southwest Petroleum University (Chengdu, China).

"Polycrystalline diamond compact bit with large-sized cutters" was invented by Xiaohua Zhu (Chengdu, China), Weiji Liu (Chengdu, China) and Zhihang Liu (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polycrystalline diamond compact (PDC) bit with large-sized cutters includes: a bit body and a bit connecting component. The bit body is provided with blades, each of the blades has a gauge surface, and nozzles are defined on the bit body and are disposed between the blades; and the blades are provided with integral cutters respectively, each of the in...