Appeal No. 2000-0953 Page 7
Application No. 08/288,418
superconducting material to selectably vary the resistance of
said portion of said radiating element and hence the overall
pattern of energy emanating from said antenna" (emphasis ours)
is not met by Koepf. It is our opinion, that at best Koepf
discloses an on-off type of antenna element. That is, an
antenna element that is made from a material that is either
cooled below the critical temperature of the superconducting
material to make the material superconducting or is not cooled
below the critical temperature of the superconducting material
so that the material is not superconducting. Thus, Koepf's
antenna element is not readable on the above-noted limitation
of claim 19.
Likewise, it is our view that the recitation in claim 20
of "selectably varying the temperature of at least a portion
of the antenna radiating element about the critical
temperature of said superconducting material to cause said
superconducting material to be superconducting when said host
platform is substantially metallic and to be non-
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