US Patent Issued to CNPC USA, BEIJING HUAMEI, CHINA NATIONAL PETROLEUM on Oct. 21 for "Molded articles of modified polyglycolic acid for degradable downhole tools application" (Chinese, American Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,863, issued on Oct. 21, was assigned to CNPC USA Corp. (Houston), BEIJING HUAMEI INC. (Beijing) and CHINA NATIONAL PETROLEUM Corp. (Beijing).

"Molded articles of modified polyglycolic acid for degradable downhole tools application" was invented by Peixiang Xing (Houston), Min (Mark) Yuan (Houston), Jiaxiang (Jason) Ren (Houston), Peng Cheng (Houston), Yu Liu (Beijing) and Zhenzhou Yang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The patent application discloses a degradable downhole tool member for hydrocarbon resource recovery. The downhole tool member comprises a shaped body comprising a degradable polymer matrix, wherein the downhole ...