Appeal No. 2005-0711
Application No. 09/943,644
According to appellants, the invention is directed to a
method for making an optical device, including the steps of
providing a perfluorocyclobutane(PFCB)-based copolymer
composition, coating this composition upon a substrate to form a
first film, thermally curing this first film to form a
substantially transparent polymeric core, and coating a cladding
layer on the surface of the first film, where the cladding layer
may also be a PFCB-based copolymer material (Brief, pages 2-3).
A copy of illustrative independent claim 16 is reproduced below:
16. A method of making an optical device, comprising:
(a) providing a perfluorocyclobutyl-based copolymer
composition having a solids content of greater than 50%,
(b) coating the perfluorocyclobutyl-based copolymer
composition upon a substrate to form a first film,
(c) thermally curing the first film to form a thermoset
film, in which the thermoset film comprises a substantially
transparent polymeric core of an optical waveguide, and
(d) coating a second composition on the outer surface of the
first film to form a second film, in which the second film is a
clad of the optical waveguide.
The examiner has relied upon the following references as
evidence of obviousness:
Kennedy et al. (Kennedy) 5,246,782 Sep. 21, 1993
Babb et al. (Babb) 5,426,164 Jun. 20, 1995
Shacklette et al. (Shacklette) 5,850,498 Dec. 15, 1998
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