Appeal 2007-2985
Application 010/669,978
1 Anions are advantageously present in the hydrogen peroxide solutions
2 of the invention "in the usual stabilizing amounts." Specification ¶ 0035.
3 Claims on appeal
4 Claim 1 as reproduced in the Appeal Brief is not accurate.
5 Accordingly, we turn to the claims as presented in the Amendment
6 filed 13 April 2006.
7 Claim 1 on appeal is representative of the claimed composition.
8 Claim 1 reads:
9 An aqueous hydrogen peroxide solution comprising:
10 i) less than 50 wppm alkali metals, alkaline earth metals
11 or combinations thereof in total, irrespective whether the alkali metals or
12 alkaline earth metals are present in cationic or complex form;
13 ii) less than 50 wppm of amines having a pkB of less
14 than 4.5 or the corresponding protonated compounds in total; and
15 iii) at least 100 wppm anions or compounds that can
16 dissociate to form anions in total,
17 the wppm being based on the weight of hydrogen peroxide.
18
19 Tsao
20 Tsao relates to a hydrogen peroxide solution said to be useful for
21 disinfecting a soft lens. Col. 1:11-12.
22 In order to overcome perceived problems in the field, Tsao describes
23 addition to hydrogen peroxide solutions of particular amines. Col. 2:30-39.
24 Tsao does not describe the method for making the hydrogen peroxide
25 mentioned in the patent. In the words of Haas: "there is no information
26 whatsoever with respect to how to make [the] hydrogen peroxide [described
5
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