US PATENT SUBCLASS 435 / 269
.~.~ Treating blood fraction


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}
267  DF  .~ Treating animal or plant material or micro-organism {6}
269.~.~ Treating blood fraction


DEFINITION

Classification: 435/269

Treating blood fraction:

(under subclass 267) Processes wherein the preexisting material is blood or a blood fraction.

(1) Note. A blood fraction is considered to include plasma, red blood cells, white blood cells, nonenzymatic proteins, serum.

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2, for processes of treating blood cells in vitro to alter some cellular property while maintaining cell viability.

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424, Drug, Bio-Affecting and Body Treating Compositions,

1.17, for the class defined compositions and methods comprising radiolabeled cells and subcellular structures, including red blood cells and platelets.