US PATENT SUBCLASS 530 / 425
.~.~.~.~ Carboxyl containing


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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  DF  .~.~.~ Oxygenated material {2}
425.~.~.~.~ Carboxyl containing


DEFINITION

Classification: 530/425

Carboxyl containing:

(under subclass 423) Processes in which the oxygenated material contains a carboxyl group.