US PATENT SUBCLASS 60 / 299
.~.~ Using a catalyst

Current as of: June, 1999
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60 /   HD   POWER PLANTS

272  DF  INTERNAL COMBUSTION ENGINE WITH TREATMENT OR HANDLING OF EXHAUST GAS {18}
282  DF  .~ By means producing a chemical reaction of a component of the exhaust gas {13}
299.~.~ Using a catalyst {3}
300  DF  .~.~.~> Having a means for heating the catalyst
301  DF  .~.~.~> Reducing type catalyst
302  DF  .~.~.~> Catalyst in engine manifold or at exhaust port

DEFINITION

Classification: 60/299

(under subclass 282) Apparatus in which the exhaust gas is passed over or through catalytic material to produce the reaction.

SEE OR SEARCH CLASS

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

168, for a chemical or catalytic reactor for treating exhaust gas.