US PATENT SUBCLASS 435 / 282
.~.~ Desulfurizing

Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

262  DF  PROCESS OF UTILIZING AN ENZYME OR MICRO-ORGANISM TO DESTROY HAZARDOUS OR TOXIC WASTE, LIBERATE, SEPARATE, OR PURIFY A PREEXISTING COMPOUND OR COMPOSITION THEREFORE; CLEANING OBJECTS OR TEXTILES {8}
281  DF  .~ Petroleum oil or shale oil treating {1}
282.~.~ Desulfurizing

DEFINITION

Classification: 435/282

Desulfurizing:

(under subclass 281) Processes wherein sulfur or sulfur containing compounds are removed from petroleum or shale oil.