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for publication and is not binding precedent of the Board.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
BEFORE THE BOARD OF PATENT APPEALS
Ex parte MARIO LUIS COSTA, GERALD COWLEY, and CHUNMIN PU
Technology Center 1700
Decided: December 13, 2006
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