Ex Parte Costa et al - Page 1
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The opinion in support of the decision being entered today was not written
for publication and is not binding precedent of the Board.
UNITED STATES PATENT AND TRADEMARK OFFICE
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BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
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Ex parte MARIO LUIS COSTA, GERALD COWLEY, and CHUNMIN PU
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Appeal 2007-0173
Application 10/438,024
Technology Center 1700
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Decided: December 13, 2006
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Before KIMLIN, GARRIS, and KRATZ, Administrative Patent Judges.
KIMLIN, Administrative Patent Judge.
DECISION ON APPEAL
This is an appeal from the final rejection of claims 1-4 and 7-9. Claim
1 is illustrative:
1. A method of producing an alkali metal chlorite having an
improved purity compared to that expected based on the composition
of chlorine dioxide generator off-gas, which comprises:
effecting generation of chlorine dioxide by reducing chlorate
ions with methanol to chlorine dioxide in an aqueous acid reaction
medium in a first reaction zone,
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Last modified: November 3, 2007
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