definiens: means a therapeutic product that is delivered acr oss a blood brain barrier using a carrier protein that facilitates transport of such therapeutic product across such barrier, but only i f ( a ) the manufacture, sale, import, offer to sell, use, or o ther activities with respect to such product would, but for the assignment to Raptor in Section 2.1 below, infringe in the country for which such produ ct is sold, a Valid Claim ; ( b ) the manufacture, sale, import, off er to sell, use, or other activities with respect t o such product would, but for the assignment to Raptor in Section 2.1 below, infringe upon some or all of the Transferred Know - How, provided that the carrier protein is the Receptor Associated Protein or an Improvement ; or ( c ) such product is otherwise based upon the Transferred Technology and the carrier protein is the Receptor Associated Protein or an I m provement