Appeal No. 1997-4350 Page 5
Application No. 08/574,848
and/or an I/O bus and concludes that it would have been obvious
to combine the teachings of Milia and Hartwell “in order to
achieve a more flexible and higher bus performance computer
data processing system because to connect a device from one bus
connection to another increase [sic] the flexibility to the
computer system architecture and avoid introduces [sic]
complexities in the system” [answer, page 4, emphasis in the
original].
It is our view that the examiner has failed to establish a
prima facie case of obviousness with regard to the claimed
subject matter. We do not find the examiner’s rather trite
recitations of “more flexible,” “higher bus performance,” and
“increase the flexibility,” per se, to constitute a cogent
rationale as to why the skilled artisan would have been led to
place the duplicate cache tag store of Milia on the I/O bus.
It is true that the artisan would like increased flexibility
and higher bus performance but the examiner has presented no
evidence, and we are aware of no evidence, other than
appellants’ own disclosure, which would have led the skilled
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