Appeal No. 2003-1788
Application No. 09/403,081
In re Aldrich, 398 F.2d 855, 857, 158 USPQ 311, 312 (CCPA 1968).
The preamble of claim 22 includes:
In a process for producing elemental sulfur by
combustion of hydrogen sulfide or a hydrogen-sulfide-
containing gas in a combustion whereby the hydrogen
sulfide or the hydrogen sulfide-containing gas is
treated by partially combusting with addition of air as
the oxidation medium, subjecting the partially
combusted hydrogen sulfide or hydrogen-sulfide-
containing gas to afterburning by adding an oxygen-
containing gas to the partially combusted gas, and
feeding the reaction gas mixture to a waste-heat boiler
and thereafter to one or more catalytic
reactors...(Emphasis ours).
Thus, from my perspective, one of ordinary skill in the art armed
with such admittedly old knowledge would have led to provide a
multiplicity of nozzles at the afterburning zone of the
combustion reactors, motivated by a reasonable of expectation of
introducing an oxygen-containing gas in the afterburning zone to
promote full combustion.
In view of the foregoing, I would have affirmed the
examiner’s decision.
__________________________ ) BOARD OF PATENT
Chung K. Pak ) APPEALS AND
Administrative Patent Judge) INTERFERENCES
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