US PATENT SUBCLASS 75 / 564
.~.~.~.~.~.~ Boron(B) or compound thereof

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
392  DF  .~ Producing or treating free metal {10}
414  DF  .~.~ At 300 degrees C or greater (e.g., pyrometallurgy, etc.) {7}
433  DF  .~.~.~ Iron(Fe) {18}
507  DF  .~.~.~.~ Melting Iron(Fe) or treating molten Iron {12}
560  DF  .~.~.~.~.~ Treating premelted Iron(Fe) or slag layer thereon by adding solid agent, slag, or flux {9}
564.~.~.~.~.~.~ Boron(B) or compound thereof

DEFINITION

Classification: 75/564

Boron (B) or compound thereof:

(under subclass 560) Process wherein Boron (B) or a compound thereof is present in the solid agent, separately prepared slag, or flux.