Appeal No. 2002-2330
Application No. 09/116,260 Page 4
1598 (Fed. Cir. 1988). In so doing, the examiner is expected to
make the factual determinations set forth in Graham v. John Deere
Co., 383 U.S. 1, 17, 148 USPQ 459, 467 (1966), and to provide a
reason why one having ordinary skill in the pertinent art would
have been led to modify the prior art or to combine prior art
references to arrive at the claimed invention. Such reason must
stem from some teaching, suggestion or implication in the prior
art as a whole or knowledge generally available to one having
ordinary skill in the art. Uniroyal, Inc. v. Rudkin-Wiley Corp.,
837 F.2d 1044, 1051, 5 USPQ2d 1434, 1438 (Fed. Cir. 1988);
Ashland Oil, Inc. v. Delta Resins & Refractories, Inc., 776 F.2d
281, 293, 227 USPQ 657, 664 (Fed. Cir. 1985); ACS Hosp. Sys.,
Inc. v. Montefiore Hosp., 732 F.2d 1572, 1577, 221 USPQ 929, 933
(Fed. Cir. 1984). These showings by the examiner are an
essential part of complying with the burden of presenting a prima
facie case of obviousness. Note In re Oetiker, 977 F.2d 1443,
1445, 24 USPQ2d 1443, 1444 (Fed. Cir. 1992). If that burden is
met, the burden then shifts to the applicant to overcome the
prima facie case with argument and/or evidence. Obviousness is
then determined on the basis of the evidence as a whole. See
id.; In re Hedges, 783 F.2d 1038, 1039, 228 USPQ 685, 686 (Fed.
Cir. 1986); In re Piasecki, 745 F.2d 1468, 1472, 223 USPQ 785,
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