Appeal No. 1995-2659
Application 07/896,705
phase. Furthermore, it is inherent in carrying out the
process of Pratt in a column that the aeration will
result in at least some discontinuous liquid phase
because Pratt requires considerable aeration of the
fermentation broth. If one passes this much air through
a column, there will not be a completely continuous
liquid phase. The alleged distinction between the
process suggested by the combination of references and
this instant process is a matter of degree of
continuous phase. Hence, contrary to appellants’
assertion the references when combined suggest that an
aerated column would inherently be at least somewhat
discontinuous.
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