Appeal No. 95-1238 Application 08/009,406 that it would have been obvious to simplify the Arendt invention by assuming that the absorption coefficients of titanium oxide and calcium carbonate are equal as taught by Utt and thus utilizing only two x-ray energies instead of three x-ray energies as taught by Arendt. Rather than reiterate the arguments of Appellants and the Examiner, reference is made to the briefs and answer for the 2 respective details thereof. OPINION We will not sustain the rejection of claims 1 through 25 under 35 U.S.C. § 103. The Examiner has failed to set forth a prima facie case. It is the burden of the Examiner to establish why one having ordinary skill in the art would have been led to the claimed invention by the express teachings or suggestions found in the prior art, or by implications contained in such teachings or suggestions. In re Sernaker, 702 F.2d 989, 995, 217 USPQ 1, 6 2Appellants filed an appeal brief on February 9, 1994. We will refer to this appeal brief as simply the brief. Appellants filed a reply appeal brief on October 24, 1994. We will refer to this reply appeal brief as the reply brief. The Examiner stated in the Examiner’s letter dated September 5, 1996 that the reply brief has been entered and considered but no further response by the Examiner is deemed necessary. 4Page: Previous 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007