Tob. Reporter, 2009, 136-11, p. 54, ISSN.0361-5693
Catalysts to reduce carbon monoxide
DEEVI S.; PADMANABHA R.
U.S. Patent 7,569,510 assigned to Philip Morris USA, Richmond, Virginia, USA. Catalysts for the conversion, or oxidation, of carbon monoxide to carbon dioxide. Cigarettes with filters containing the catalysts have acceptable resistance to draw....