Appeal No. 95-3208
Application 08/067,307
in the art would have been led to the claimed invention by the
reasonable teachings or suggestions found in the prior art, or by
a reasonable inference to the artisan contained in such teachings
or suggestions. In re Sernaker, 702 F.2d 989, 995, 217 USPQ 1, 6
(Fed. Cir. 1983). In addition, the Federal Circuit states that
"[t]he mere fact that the prior art may be modified in the manner
suggested by the Examiner does not make the modification obvious
unless the prior art suggested the desirability of the
modification." In re Fritch, 972 F.2d 1260, 1266 n.14, 23 USPQ2d
1780, 1783-84 n.14 (Fed. Cir. 1992), citing In re Gordon, 733
F.2d 900, 902, 221 USPQ 1125, 1127 (Fed. Cir. 1984).
"Additionally, when determining obviousness, the claimed
invention should be considered as a whole; there is no legally
recognizable 'heart' of the invention." Para-Ordnance Mfg. v.
SGS Importers Int’l, Inc., 73 F.3d 1085, 1087, 37 USPQ2d 1237,
1239 (Fed. Cir. 1995), cert. denied, 117 S.Ct. 80 (1996), citing
W. L. Gore & Assocs., Inc. v. Garlock, Inc., 721 F.2d 1540, 1548,
220 USPQ 303, 309 (Fed. Cir. 1983), cert. denied, 469 U.S. 851
(1984). In addition, the Federal Circuit reasons in Para-
Ordnance Mfg., 73 F.3d at 1087-88, 37 USPQ2d at 1239-40, that for
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