Appeal No. 1996-3423
Serial No. 08/314,471
9). There is no evidence that a direct parallel exists
between gasoline yields and yields of the combined
gasoline and light oil products. Evidence of such a
parallel is essential if one is to make the jump from an
increase in yield for gasoline to the increase in yield
for the combined gasoline/light cycle oil that the
claimed process requires.
Compounding this lack of direction is that it is not
at all clear from reading these references that even the
gasoline yield would be expected to increase. Although
examiner has directed our attention to passages in
Singleton disclosing an increase in gasoline yield due to
the incorporation of boron, a perusal of the Tables of
Singleton reveals that a more complicated set of factors
is at work. Example 5 (col. 6, line 64) appears to
contradict the cited disclosures by showing a lower
gasoline yield for a catalyst with boron than without.
Also, example 9 differs from example 10 only in that
example 10 includes boron, and yet their gasoline yields
are identical. It is difficult to tell from this
disclosure what type of yield to expect if boron is
9
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