US Patent Issued to Southwest Petroleum University on Aug. 11 for "Long-life drill bit with downhole self-renewal capability" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,025, issued on Aug. 11, was assigned to Southwest Petroleum University (Chengdu City, China).

"Long-life drill bit with downhole self-renewal capability" was invented by Haitao Ren (Chengdu City, China), Aixuan Wu (Chengdu City, China), Kuilin Huang (Chengdu City, China), Jiangtao Zheng (Chengdu City, China), Yixin Chen (Chengdu City, China), Qi Zhan (Chengdu City, China) and Chunxiao Zhou (Chengdu City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A long-life drill bit with a downhole self-renewal capability is provided. The long-life drill bit with a downhole self-renewal capability includes a drill bit body and a joint. A fixed blade and ...