US PATENT SUBCLASS 426 / 427
.~.~ Removing caffein or tannin

Current as of: June, 1999
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426 /   HD   FOOD OR EDIBLE MATERIAL: PROCESSES, COMPOSITIONS, AND PRODUCTS

665  DF  PROCESSES {25}
425  DF  .~ Extraction utilizing liquid as extracting medium {4}
427.~.~ Removing caffein or tannin {1}
428  DF  .~.~.~> Utilizing organic liquid

DEFINITION

Classification: 426/427

(under subclass 425) Processes for the treatment of a material to selectively remove a portion or substantially all of the caffeine or tannin.

SEE OR SEARCH CLASS

260, Chemistry of Carbon Compounds,

256, for caffein and derivatives thereof and subclass 473.5 for tannins and derivatives thereof.