ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,369, issued on Sept. 30, was assigned to GUANGZHOU MAXINOVEL PHARMACEUTICALS Co. LTD. (Guangdong, China).
"Crystal form of aromatic vinyl derivatives, and preparation method therefor and use thereof" was invented by Yuguang Wang (Guangdong, China), Nong Zhang (Guangdong, China) and Pingjing Zhang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed in the present invention are a crystal form of aromatic vinyl derivatives, and a preparation method therefor and the use thereof. Specifically disclosed in the present invention are crystal form A, crystal form B and crystal form C of a compound as shown in formula I. The crystal fo...