ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,154, issued on Oct. 21, was assigned to Chia Tai Tianqing Pharmaceutical Group Co. LTD. (Lianyungang, China), Lianyungang Runzhong Pharmaceutical Co. LTD. (Lianyungang, China) and Shouyao Holdings (Beijing) Co. LTD. (Beijing).

"Use of pyrrolopyrimidine compound for treating hemophagocytic syndrome" was invented by Hongming Liang (Lianyungang, China), Xiquan Zhang (Lianyungang, China), Xunqiang Wang (Lianyungang, China), Ding Yu (Lianyungang, China), Dong Wang (Lianyungang, China), Qi Ge (Lianyungang, China), Zhao Wang (Beijing) and Yini Wang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to use of a pyrrolopyri...