Appeal No. 1996-1896
Application No. 08/206,973
change in weight or the pressure difference, both Emken and
Accuntius teach adjusting the amount of particles added or
withdrawn to obtain “precise coating characteristics and
thickness”.
The examiner recognizes that both Emken and Accuntius do
not teach adjusting the mixture of hydrocarbon component in
response to the change in weight or the pressure difference.
See Answer, pages 5 and 9. The examiner, however, concludes
that adjusting the mixture of hydrocarbon component in
response to the change in weight or the pressure difference
would have been obvious to one of ordinary skill in the art
either because “[t]he amount of coating gas supplied to a
coating device is a well known ‘cause effective’ variable”,
see Answer, pages 5 and 9, or because Lester “discloses by
varying operating parameters of time, temperature and
particular pyropolymer precursor, the thickness of the
carbonaceous pyropolymer on the surface of the inorganic
support can be adjusted to a predetermined size”, see Answer,
pages 6 and 10.
Although the examiner might have established that there
is a suggestion to adjust the flow rate of hydrocarbon to
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