Patent 7972603 was granted and assigned to Neovacs on July, 2011 by the United States Patent and Trademark Office.
The invention relates to a stable immunogenic product for the induction of antibodies against one or more antigenic proteins in a subject. The invention is characterised in that it comprises proteinaceous immunogenic heterocomplexes which are formed by associations between (i) antigenic protein molecules and (ii) proteinaceous carrier molecules and in that less than 40% of the antigenic proteins (i) are linked to the proteinaceous carrier molecules (ii) by a covalent bond.