CNBG Chengdu Institute of Biological Products (CDIBP) obtained a Patent Cooperation Treaty (PCT) patent granted by the Patent Office, Government of India.
CNBG CDIBP submitted a PCT patent application named INTERLEUDIN-6 POLYETHYLENE GLYCOL CONJUGATE AND ITS PREPARING METHOD AND USE in 2006, with the application number of PCT/CN2006/000891. It entered the India national application stage in 2007 after preliminary international examination. Before CDIBP received the patent certificate lately, the application had been revied for 6 years and got the authorization in the second half of 2013. [Reported by CNBG CDIBP]