Appeal No. 2003-0615
Application No. 09/319,165
composition comprising uricase (a dielectron reducing oxidase),
uric acid or a salt thereof (a donor for the uricase), an
oxidation dye, and an optional reducing agent (page 2, lines 25-
29 and 37-40). The disclosed oxidation dyes include a number of
para-phenylenediamines and addition salts thereof (the
appellants’ first oxidation base), a number of para-aminophenols
and acid addition salts thereof (the appellants’ second oxidation
base), and 5-(2-hydroxyethylamino)-2-methylphenol (the
appellants’ coupler, 2-methyl-5-N-($-hydroxyethyl)aminophenol)
(page 3, lines 3-15).4 In experiments 1 and 3-5, and examples 1,
4, 5, 7 and 9, p-phenylenediamine, p-aminophenol, uricase, and
uric acid or an acid addition salt thereof are used in
combination. The appellants’ coupler is not used in any example,
and is not among the preferred oxidation dyes (page 3, lines 21-
23).
Andrillon discloses a composition for the oxidation dyeing
of keratin fibers, particularly human hair, comprising 1) a
coupler, which preferably is a 2-methyl-5-N-($-hydroxyalkyl)-
4 As pointed out by the appellants, “[t]he term ‘oxidation
dye’ is a generic term for both oxidation dyes and couplers”
(brief, page 5).
4
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