Appeal No. 2004-2019 Application No. 10/301,441 Page 2 containing a minor quantity of said impurities which comprises contacting the MTBE feed in the liquid phase with a solid contact material consisting essentially of a solid large pore zeolite and recovering a MTBE product stream reduced in content of said impurities from the contact. The prior art reference of record relied upon by the examiner in rejecting the appealed claims is: Knifton et al. (Knifton) 5,457,243 Oct. 10, 1995 Claims 1 and 3 stand rejected under 35 U.S.C. § 102(b) as anticipated by Knifton. Claims 1-3 stand rejected under 35 U.S.C. § 103(a) as being unpatentable over Knifton. We refer to the brief and to the answer for a complete exposition of the opposing viewpoints expressed by appellants and the examiner concerning the issues before us on this appeal. OPINION Upon careful review of the entire record including the respective positions advanced by appellants and the examiner, we find ourselves in agreement with appellants insofar as the examiner has failed to carry the burden of establishing a prima facie case of anticipation or obviousness. See In re Oetiker, 977 F.2d 1443, 1445, 24 USPQ2d 1443, 1444 (Fed. Cir. 1992).Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NextLast modified: November 3, 2007