The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 2018
Filed:
Sep. 28, 2012
Chong Kun Dang Pharmaceutical Corp., Seoul, KR;
Yeo-Wook Koh, Yongin-Si, KR;
Sang-Yong Lee, Yongin-Si, KR;
Cook-Hee Kim, Yongin-Si, KR;
Seung-Hui Lee, Yongin-Si, KR;
Ha-Na Kim, Yongin-Si, KR;
Su-Yon Kim, Yongin-Si, KR;
Jin-Hyun Seong, Yongin-Si, KR;
Yong-Hyun Cho, Yongin-Si, KR;
CHONG KUN DANG PHARMACEUTICAL CORP., Seoul, KR;
Abstract
The present invention relates to a method for purifying an erythropoietin analog having a low isoelectric point below 4 by adding an N-linked sugar chain with high purity. In accordance with the present invention, the erythropoietin analog having an isoelectric point below 4, which is an isoform having more sialic acid residues, can be effectively purified via three-step chromatographic processes in short time at lower cost.