A method is disclosed for preparing water soluble protein polymer conjugates which stabilize the protein so as to retain functional properties in a hostile environment. The method comprises covalently bonding the polymer to the protein through at least three linkers which linkers have...http://www.google.com.au/patents/US5736625?utm_source=gb-gplus-sharePatent US5736625 - Method for stabilizing proteins with saccharide linked protein polymer conjugates 