Appeal No. 1999-2281 Application No. 08/621,521 we cannot affirm the obviousness rejection of claims 5, 6, 8, 18, 19, and 26 over Gill. Regarding the obviousness rejection of claims 1, 4 through 8, 11, 12, 17 through 20, 22, 26, and 28 over Matsuura in view of Gill, appellants (Brief, page 10) take issue with the examiner's statement that "various differences exist between these references and the rejected claims, yet merely states that the differences would have been the obvious result of routine experimentation and optimization." This argument relates only to claims 5, 6, 8, 18, 19, and 26. As explained above, such reasoning is improper and fails to establish a prima facie case of obviousness. Therefore, we will reverse the rejection of claims 5, 6, 8, 18, 19, and 26 over Matsuura in view of Gill. For the remaining claims appellants merely contend (Brief, page 10) that neither Matsuura nor Gill is prior art to the present claims. As indicated above, Gill is prior art. Further, the filing date of Matsuura antedates appellants' earliest priority date of September 15, 1995. Therefore, 8Page: Previous 1 2 3 4 5 6 7 8 9 10 11 NextLast modified: November 3, 2007