Appeal No. 95-3336
Application No. 07/984,448
The examiner applies Hattori or Yogi to show the well
known method of joining two ceramic compacts by cold isostatic
pressing followed by firing (answer, paragraph bridging pages
3-4). The examiner then concludes that “[i]t would have been
obvious for one of ordinary skill in the art to have used CIP
and subsequent firing to join the bodies of Conder et al since
this method is an art recognized alternative for joining
ceramic compacts.” (answer, sentence bridging pages 3-4).
“It is well-established that before a conclusion of
obviousness may be made based on a combination of references,
there must have been a reason, suggestion, or motivation to
lead an inventor to combine those references.” Pro-Mold and
Tool Co. v. Great Lakes Plastics, Inc., 75 F.3d 1568, 1573, 37
USPQ2d 1626, 1629 (Fed. Cir. 1996). The examiner has failed
to advanced any cogent reasoning that would have led one of
ordinary skill in the art to substitute the CIP and firing of
the secondary references for the “thermo-compression” of
Conder (see the brief, page 4).
As argued by appellants on page 7 of the brief, Conder
teaches against the use of high temperatures and high
4
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