ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,729, issued on Feb. 3, was assigned to XI'AN THERMAL POWER RESEARCH INSTITUTE Co. LTD. (Shaanxi, China).

"Method and apparatus for improving steam oxidation resistance of small diameter boiler tube in coal-fired boiler" was invented by Jintao Lu (Xi'an, China), Jinyang Huang (Xi'an, China), Xingxing Zhang (Xi'an, China), Zhen Yang (Xi'an, China), Yongli Zhou (Xi'an, China), Yingying Dang (Xi'an, China), Limin Li (Xi'an, China) and Yong Yuan (Xi'an, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application relates to the technical field of coal-fired boilers, and provides a method and an apparatus for improving steam oxidation resistance o...