Appeal No. 2006-2247
Reexamination Nos. 90/006,554 and 90/006,894
1 unstable inorganic per-compounds of acid-forming elements of groups
2 VA, VIA, VIB, and VIII of the periodic table as catalyst. (Column 1,
3 lines 66-72.)
4 20. Witman describes the applicability of the disclosed N-oxidation
5 process to all tertiary amines, as follows:
6 My new process efficiently effects the oxidation of the N-
7 oxides of all of the tertiary amines which are known to oxidize
8 to the corresponding N-oxides, and in fact my new process is
9 applicable generally to the oxidation of all tertiary amines to
10 the corresponding N-oxides. [Emphasis added; column 1, line
11 72 to column 2, line 5.]
12
13 21. As typical examples of such tertiary amines, Witman describes
14 “pyridine and the various substituted pyridines.” (Column 3, lines 38-
15 40.)
16 22. Witman teaches that the disclosed process is advantageous, as
17 follows:
18 Since my new process employs only stable, easily handled
19 materials, relatively inexpensive, re-usable catalysts, and gives
20 much higher reaction rates than have heretofore been possible,
21 it lends itself admirably as a general method for the large-scale
22 preparation of N-oxides. The new process also effects much
23 more efficient use of hydrogen peroxide. [Column 2, lines 5-
24 11.]
25
26 23. According to Witman, “[a]s a general rule, an amount of the catalyst
27 between about 1.0% and about 20%, based on the number of moles of
7
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