US Patent Issued to Hunan Institute for Drug Inspection and Testing on April 14 for "Method for pretreating ranitidine hydrochloride sample" (Chinese Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,718, issued on April 14, was assigned to Hunan Institute for Drug Inspection and Testing (Changsha City, China).

"Method for pretreating ranitidine hydrochloride sample" was invented by Shuai Li (Changsha City, China), Bin Liao (Changsha City, China), Hongyu Chen (Changsha City, China), Yuxin Li (Changsha City, China), Yanming Liu (Changsha City, China), Guipeng Tang (Changsha City, China) and Yang Gao (Changsha City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a method for pretreating Ranitidine hydrochloride sample, comprising steps: S1, weighing the Ranitidine hydrochloride sample containing an impurity of N-nitrosodimethyl...