Appeal No. 1997-2974
Application No. 08/288,313
the examiner, Vaughan evidences that it was conventional in
the art to utilize zeolite seed, or nucleation centers, in the
preparation of zeolites (see column 1, lines 17-20 and 41-46).
Accordingly, based on the state of the prior art, we are
satisfied that it would have been obvious for one of ordinary
skill in the art to use zeolite seed in the preparation
process of Brown for preparing a P zeolite of the claimed
formula.
Appellant emphasizes that the claimed process is on an
industrial scale, i.e., in a stirred vessel of 2m volume or3
more, whereas Brown "is limited to laboratory scale
operations" and is not capable of an industrial scale
preparation (page 6 of principal brief). In addition,
appellant relies upon the disclosure in WO 94/26662
(hereinafter WO '662) for evidence that "using the teaching of
Brown, it is not possible to produce a zeolite P type having
the following formula . . . in a reactor tank of 2 m or3
above" (page 9 of principal brief, lines 1-4).
Our review of WO '662, as well as the entire evidence of
record, leads us to the conclusion that appellant has not
established on this record that it is not possible to prepare
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