US Patent Issued to NORTH UNIVERSITY OF CHINA on Sept. 30 for "Integrated-preparation and application methods of urea-formaldehyde (UF)-based multi-nutrient biodegradable polymeric slow-release (SR) liquid and granular fertilizers" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,355, issued on Sept. 30, was assigned to NORTH UNIVERSITY OF CHINA (Taiyuan, China).

"Integrated-preparation and application methods of urea-formaldehyde (UF)-based multi-nutrient biodegradable polymeric slow-release (SR) liquid and granular fertilizers" was invented by Yaqing Liu (Taiyuan, China), Yang Xiang (Taiyuan, China), Wenqi Wang (Taiyuan, China) and Guizhe Zhao (Taiyuan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for integrally preparing urea-formaldehyde (UF)-based multi-nutrient biodegradable polymeric slow-release (SR) liquid and granular fertilizers is provided. A hydroxymethylurea solution is prepared, and a part of...