US Patent Issued to Guangzhou Realbenefitspot Pharmaceutical, Guangzhou Yinheyangguang Biologics on May 13 for "Methods of producing and characterizing virus vaccine and virus vaccine composition" (Chinese Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,461, issued on May 13, was assigned to Guangzhou Realbenefitspot Pharmaceutical Co. Ltd. (Guangzhou, China) and Guangzhou Yinheyangguang Biologics Co. Ltd. (Guangzhou, China).

"Methods of producing and characterizing virus vaccine and virus vaccine composition" was invented by Dianlian Liu (Guangzhou, China), Wen Ai (Guangzhou, China) and Mingfeng Shen (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application pertains to methods of isolating virus particles and producing virus vaccine composition comprising subject a biological sample to an anion exchange chromatography and a hydroxyapatite chromatography. The application als...