ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,926, issued on May 12, was assigned to BEIJING DRAINAGE GROUP Co. LTD (Beijing).
"Bidirectional flow pulse-based water body phosphorus removal apparatus and method, and organic nutrient soil" was invented by Kuixiao Li (Beijing), Yulong Shi (Beijing), Qi Xu (Beijing), Gang Wang (Beijing), Jiawei Wang (Beijing), Haipeng Bao (Beijing), Guanglu Li (Beijing) and Fuliang Ma (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bidirectional flow pulse-based water body phosphorus removal apparatus and a method, and an organic nutrient soil. The water body phosphorus removal apparatus includes: a prefiltration unit, a bidirectional flow phosphorus remov...