US PATENT SUBCLASS 530 / 423
.~.~.~ Oxygenated material


Current as of: June, 1999
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530 /   HD   CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF

350  DF  PROTEINS, I.E., MORE THAN 100 AMINO ACID RESIDUES {14}
412  DF  .~ Separation or purification {6}
422  DF  .~.~ Solvent extraction {2}
423.~.~.~ Oxygenated material {2}
424  DF  .~.~.~.~> Alcohol
425  DF  .~.~.~.~> Carboxyl containing


DEFINITION

Classification: 530/423

Oxygenated material:

(under subclass 422) Processes in which the solvent contains oxygen.