US PATENT SUBCLASS 435 / 272
.~.~ Proteinaceous material recovered or purified

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}
272.~.~ Proteinaceous material recovered or purified {1}
273  DF  .~.~.~> Collagen or gelatin

DEFINITION

Classification: 435/272

Proteinaceous material recovered or purified:

(under subclass 267) Processes wherein the preexisting material is a proteinaceous material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

239, for methods of separating virus and protein contaminants by various methods, e.g., sorption, precipitation, etc.

SEE OR SEARCH CLASS

8, Bleaching, and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers,

94.1+, for fluid or chemical treatment of hides, skins, feathers, and animal tissues, not otherwise provided for; subclass 127.5 for processes of chemically modifying proteinaceous fibers; and subclass 138 for processes for fluid or chemical treatment of silk for the removal of sericin, or other naturally occurring gum or wax. Processes classifiable in this subclass (2) generally include the production of a fiber pulp from a raw proteinaceous fibrous material (e.g., leather).

134, Cleaning and Liquid Contact With Solids, for processes of chemically removing coatings, such as wax, from a paper base without otherwise affecting the base, where the coating is not recovered.

260, Chemistry of Carbon Compounds,

112, for proteins and their reaction products and, in particular, subclass 123.7 for chemical treatment of natural protein containing material.