Appeal No. 1999-0541
Application No. 08/599,436
OPINION
In rejecting claims under 35 U.S.C. § 103, the Examiner
bears the initial burden of presenting a prima facie case of
obviousness. See In re Rijckaert, 9 F.3d 1531, 1532, 28 USPQ2d
1955, 1956 (Fed. Cir. 1993). The conclusion that the claimed
subject matter is obvious must be supported by evidence, as shown
by some objective teaching in the prior art or by knowledge
generally available to one of ordinary skill in the art that
would have led that individual to combine the relevant teachings
of the references to arrive at the claimed invention. See In re
Fine, 837 F.2d 1071, 1074, 5 USPQ2d 1596, 1598 (Fed. Cir. 1988).
Furthermore, the Examiner must also produce factual basis
supported by teaching in a prior art reference or shown to be
common knowledge of unquestionable demonstration, consistent with
the holding in Graham v. John Deere Co., 383 U.S. 1 (1966). Our
reviewing court requires this evidence in order to establish a
prima facie case. In re Piasecki, 745 F.2d 1468, 1471-72, 223
USPQ 785, 787-88 (Fed. Cir. 1984); In re Cofer, 354 F.2d 664,
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