US PATENT SUBCLASS 435 / 162
.~.~.~.~.~ Multiple stages of fermentation; multiple types of micro-organisms or reuse of micro-organisms

Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

41  DF  MICRO-ORGANISM, TISSUE CELL CULTURE OR ENZYME USING PROCESS TO SYNTHESIZE A DESIRED CHEMICAL COMPOUND OR COMPOSITION {26}
132  DF  .~ Preparing oxygen-containing organic compound {6}
155  DF  .~.~ Containing hydroxy group {2}
157  DF  .~.~.~ Acyclic {3}
161  DF  .~.~.~.~ Ethanol {2}
162.~.~.~.~.~ Multiple stages of fermentation; multiple types of micro-organisms or reuse of micro-organisms

DEFINITION

Classification: 435/162

Multiple stages of fermentation; multiple types of microorganisms or reuse of microorganisms:

(under subclass 161) Processes wherein ethanol is prepared by (a) two or more distinct fermentation steps, or (b) by using microorganisms of different species sequentially, or (c) by a process wherein the microorganism is recycled and reused.