US Patent Issued to INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES on Aug. 26 for "Microcapsule-based vaccine" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,052, issued on Aug. 26, was assigned to INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES (Beijing).

"Microcapsule-based vaccine" was invented by Guanghui Ma (Beijing), Wei Wei (Beijing), Xiaobo Xi (Beijing), Tong Ye (Beijing), Xiangming Na (Beijing) and Shuang Qing (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vaccine comprising antigen and a matrix of biodegradable polymer blend, wherein the polymer blend comprises hydrophobic polymer and amphiphilic block copolymer, and the vaccine exists in form of microcapsules that comprise a multi-cavity structure inside, and has an average particle diameter of preferably 10-100 micro ...