US PATENT SUBCLASS 435 / 295.3
.~.~.~ Including a semi-permeable membrane or filter

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

283.1  DF  APPARATUS {9}
289.1  DF  .~ Bioreactor {16}
295.1  DF  .~.~ Including a draft tube for agitation {2}
295.3.~.~.~ Including a semi-permeable membrane or filter

DEFINITION

Classification: 435/295.3

Including a semipermeable membrane or filter:

(under subclass 295.1) Apparatus wherein the bioreaction chamber includes at least one semiporous membrane or filter that is designed for holding or excluding a solid or dissolved reactant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

297.1, for semipermeable membrane or filter containing reactors which do not include a draft tube.