Appeal No. 2005-1161 Page 2
Application No. 09/793,406
INTRODUCTION
The claims are directed to low-emissivity (low-E) coatings on glass substrates. A
particular layer sequence is required by the claims. Claim 1 is illustrative:
1. A surface-coated glass article comprised of a glass substrate and a multiple layer
coating on a surface of the glass substrate, wherein said coating comprises:
at least one layer comprising a transparent dielectric material adjacent the surface of the
glass substrate,
a layer comprising nickel and/or nichrome, and
a layer comprising silicon oxynitride interposed between said layer of dielectric material
and said layer comprising nickel and/or nichrome.
One material disclosed in the specification as useful as the transparent material is TiO2. The
claim thus encompasses a layer sequence of TiO2/SiOxNy/Ni or Ni:Cr on the glass substrate.
The Examiner rejects the claims under 35 U.S.C. § 103(a). As evidence of
unpatentability, the Examiner relies upon the following prior art references:
Hartig et al. (Hartig ‘321) 5,770,321 Jun. 23, 1998
Hartig et al. (Hartig ‘933) 5,800,933 Sep. 1, 1998
Macquart et al. (Macquart) 5,935,702 Aug. 10, 1999
The specific rejections maintained are:
1. Claims 1-7 and 9 rejected under 35 U.S.C. § 103(a) as being unpatentable over
Hartig ‘933 in view of Macquart; and
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