US PATENT SUBCLASS 435 / 280
.~ Resolution of optical isomers or purification of organic compounds or composition containing same

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}
280.~ Resolution of optical isomers or purification of organic compounds or composition containing same

DEFINITION

Classification: 435/280

Resolution of optical isomers or purification of organic compounds or composition containing same:

(under subclass 262) Processes wherein a racemic mixture is treated to liberate an optically active mixture or compound or a mixture is otherwise purified by a microorganism or enzyme to obtain a specified organic compound.

(1) Note. It should be noted that biological, i.e., microbial or enzymatic reactions are generally steriospecific so that a search, to be complete, should also include a search of the synthesis subclass, i.e., subclasses 41+ of this class which provides for the transformation of the "contaminant" if it is chemically identifiable.