Appeal No. 2004-1073
Application No. 09/046,105
to a radiation-absorbing glaze on a quartz glass envelope and
Miyauchi is directed to a colored film-coated glass article.
Neither Loughridge nor Miyauchi provides any teaching or
suggestion that the oxides of copper and chromium can be
effectively used in glass fiber compositions. Likewise, neither
of the primary references provides any general teaching that a
variety of known UV-absorbing agents can be effectively used in
making glass fiber compositions. Hence, in the absence of the
requisite teaching or suggestion in either the primary or
secondary references, we must concur with appellants that the
examiner's conclusion of obviousness is based more upon the use
of impermissible hindsight than the teachings of the applied
prior art. In our view, based on the prior art as a whole, we
agree with appellants that it cannot be reasonably presumed that
the use of the claimed copper and chromium oxides "would
effectively absorb UV light without adversely affecting other
important characteristics required of a woven cloth" (page 7 of
Brief, first paragraph).
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