ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,518, issued on Feb. 24, was assigned to TONGHUA ANRATE BIOPHARMACEUTICAL Co. LTD (Jilin, China).
"Method for purification of recombinant proteins" was invented by Wei Xiang (Jilin, China), Zhilei Yue (Jilin, China), Hongzhi Zhao (Jilin, China) and Congwei Shao (Jilin, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a method for purification of a recombinant protein, in particular to a recombinant human albumin; the method includes: (a) adding aminoguanidine and a medium-long chain fatty acid to a sample containing the recombinant protein; and (b) chromatographing the obtained sample, where the chromatography is op...