US PATENT SUBCLASS 422 / 188
.~ Including plural reaction stages

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

129  DF  CHEMICAL REACTOR {28}
188.~ Including plural reaction stages {2}
189  DF  .~.~> And means providing discrete sequential reaction stages; e.g., train, etc. {2}
196  DF  .~.~> Including plural parallel reaction stages with each stage in form of a reaction tube {1}

DEFINITION

Classification: 422/188

Including plural reaction stages:

(under subclass 129) Apparatus comprising multiple reaction means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

141+, for plural fluidized reaction beds.

156+, for plural pigment or carbon making apparatus.

169+, for waste gas purifier having plural stages.