Tobacco – Smoke separator or treater – By chemical reaction – e.g. – ion-exchange – chelating,...
Reexamination Certificate
2007-07-17
2007-07-17
Mayes, Dionne W. (Department: 1731)
Tobacco
Smoke separator or treater
By chemical reaction, e.g., ion-exchange, chelating,...
C131S364000
Reexamination Certificate
active
10460210
ABSTRACT:
Cut filler compositions, cigarette paper, cigarette filters, cigarettes, methods for making cigarettes and methods for smoking cigarettes are provided, which involve the use of nanoscale particle composite catalysts capable of acting as a catalyst for the conversion of carbon monoxide to carbon dioxide. The nanoscale composite catalyst comprises metal and/or metal oxide particles supported on nanoscale support particles. The nanoscale composite catalyst can be prepared by forming a mixture by combining nanoscale particles with a colloidal solution, a metal precursor solution with nanoscale particles, or a metal precursor solution with a colloidal solution, and then heat-treating the mixture.
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Deevi Sarojini
Koller Kent B.
Buchanan & Ingersoll & Rooney PC
Mayes Dionne W.
Philip Morris USA Inc.
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