Appeal 2007-1366
Application 90/005,090
1 percentages that resulted from actually carrying out the process
2 described in Example 1. Quaal, 2:31-33.
3 F. 48. Quaal’s Example 4 identifies a number of different silane
4 cohydrolysis combinations and their resulting products. Quaal, Table,
5 columns 3-4.
6 F. 49. One having ordinary skill in the art would have understood that Quaal
7 describes a general technique for forming a variety of tris-type silanes,
8 including TRIS.
9 The Level of ordinary skill in the art
10 F. 50. The person having ordinary skill in the art was aware of the reasons
11 for and desirability of high oxygen permeability in contact lens
12 materials.
13 F. 51. The person of ordinary skill in the art would have fully understood the
14 copolymerization chemistry used to make contact lens materials
15 including the mechanism involved in cross-linking.
16 F. 52. One having ordinary skill in the art would have understood that cross-
17 linking takes place through unstaturated ethylenic bonds (=CH2).
18 F. 53. The person having ordinary skill in the art would also have
19 understood and been familiar with the processes and chemistry for
20 making the comonomers that are copolymerized in making contact
21 lens materials.
22 F. 54. One having ordinary skill in the art would have been familiar with the
23 properties of TRIS and the chemistry necessary to make it.
24 ISSUES
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