Patent 8465734 was granted and assigned to AntiCancer on June, 2013 by the United States Patent and Trademark Office.
The present invention relates to highly conjugated proteins and methods for making such proteins. In particular, the present invention relates to methods for linking additional sites to a protein for conjugation with activated polyethylene glycol (PEG) linkers, without denaturing the protein. The invention also relates to highly conjugated proteins with decreased immunogenicity and increased circulating half-life.