US Patent Issued to Zhihe Environmental Science and Technology on Feb. 11 for "Polyhedral spherical denitrifying packing and use method thereof" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,368, issued on Feb. 11, was assigned to Zhihe Environmental Science and Technology Co. Ltd (Zhengzhou, China).

"Polyhedral spherical denitrifying packing and use method thereof" was invented by Haisong Li (Zhengzhou, China), Dengke Yan (Zhengzhou, China), Xiaolei Chen (Zhengzhou, China), Zicong Xu (Zhengzhou, China), Peiji Hu (Zhengzhou, China) and Wang Cao (Zhengzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a polyhedral spherical denitrifying packing and a use method thereof. An outer surface of the polyhedral spherical denitrifying packing is composed of a plurality of conical pieces, and each of the conical pieces has a ...