US PATENT SUBCLASS 505 / 780
.~.~.~ Yttrium(Y) and barium(Ba)-(e.g., YBa2Cu307)

Current as of: June, 1999
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505 /   HD   SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS

775  DF  HIGH Tc (ABOVE 30 K) SUPERCONDUCTING MATERIAL {3}
776  DF  .~ Containing transition metal oxide with rare earth or alkaline earth {4}
779  DF  .~.~ Other rare earth (i.e., Sc,Y,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu) and alkaline earth (i.e., Ca,Sr,Ba,Ra) {1}
780.~.~.~ Yttrium(Y) and barium(Ba)-(e.g., YBa2Cu307) {1}
781  DF  .~.~.~.~> Noble metal (i.e., Ag, Au, Os, Ir, Pt, Ru, Rh, Pd) or chromium(Cr), manganese(Mn), iron(Fe), cobalt(Co), or nickel(Ni)-[e.g., YBa2Cu(3-x)Fe(x)O(y)]

DEFINITION

Classification: 505/780

Yttrium (Y) and barium (Ba) - (e.g., YBa2Cu307):

(under subclass 779) Material wherein the Rare Earth is Yttrium (Y) and the Alkaline Earth is Barium (Ba).