ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,224, issued on May 13, was assigned to HENAN GENUINE BIOTECH Co. LTD. (Pingdingshan, China).
"Crystal form, preparation method, and application of 4'-substituted nucleoside" was invented by Junbiao Chang (Zhengzhou, China), Jinfa Du (Zhengzhou, China), Kaikai Zhu (Zhengzhou, China), Kai Wang (Zhengzhou, China), Jianyong Li (Zhengzhou, China) and Chunxia Zhang (Zhengzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a crystal form, a preparation method and an application of a 4'-substituted nucleoside compound I having the following structure, including salts, prodrugs, and compositions thereof. Animal pharmaco...