definiens: shall mean those c laims of United States Patent Nos . 4,889,818 and 5,079,352 and U.S.S.N. 07/387,00 3, and any reissues and continuations thereof, and those claims in foreign patents and patent applications claiming priority from a patent applic ation which is a basis for any of the above US patents or patent applications and which foreign claims include within their scope a TAQ REAGENT but only t o the extent that such claims are necessary for SCS to manufacture, use and sell TAQ REAGENTS pursuant to sections 2.2 - 2.5 hereto, except that dim rights spe cifically exclude the ( Perkin - Elmer catalogue # N808 - 00 38 ) and the ( an amino acid replacement of glycine corresponding to position 46 of the Taq polymerase amino acid sequence provided in Lawyer e t. al . 1989 ( JBC 264 : 6247 - 6437 )