US Patent Issued to ZHEJIANG LONGCHARM BIO-TECH PHARMA. on Aug. 5 for "Pyrrolopyrimidine compound as BTK inhibitor and use thereof" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,253, issued on Aug. 5, was assigned to ZHEJIANG LONGCHARM BIO-TECH PHARMA. Co. LTD. (Hangzhou, China).

"Pyrrolopyrimidine compound as BTK inhibitor and use thereof" was invented by Yang Zhang (Shanghai), Wentao Wu (Shanghai), Kaijun Geng (Shanghai), Qiu Li (Shanghai), Jian Li (Shanghai) and Shuhui Chen (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a pyrrolopyrimidine compound and a use thereof in preparing a medicine for diseases related to a BTK protein kinase inhibitor. Specially, disclosed are a compound as shown in formula (III) and a pharmaceutically acceptable salt thereof."

The patent was filed on Nov. 13, 2020, under...