Appeal No. 96-1852
Application No. 08/016,931
composition being ophthalmically acceptable and having an
ophthalmically acceptable pH greater than 5.0, said
ophthalmically acceptable antioxidant component being selected
from the group consisting of Vitamin A, Vitamin E, ascorbic
acid, glutathione, oxidation-type glutathione, ophthalmically
acceptable antioxidant salts thereof, ophthalmically
acceptable antioxidant derivatives thereof, precursors thereof
and mixtures thereof, said composition being ophthalmically
acceptable.
The examiner relies upon the following references as
evidence of obviousness:
Ogata 4,285,738 Aug. 25, 1981
Chanda et al. (Chanda) 4,715,899 Dec. 29, 1987
Japanese Abstract JP60254114 (Japanese '114) (1985)
Appellants' claimed invention is directed to a
composition useful for inhibiting the formation of deposits on
a contact lens, and methods for utilizing the composition on a
contact lens while being both worn and not worn. The
composition comprises ophthalmically acceptable carrier
components, wearability components and antioxidant components.
Appealed claims 1-13 and 15-22 stand rejected under
35 U.S.C. § 103 as being unpatentable over the collective
teachings of Chanda, Ogata and Japanese '114.
We have thoroughly reviewed the respective positions
advanced by appellants and the examiner. In so doing, we
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