Patents by Inventor Cynthia V. Bailey

Cynthia V. Bailey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cigarette filter material comprising compounds of iron in high oxidation states
    Patent number: 4246910
    Abstract: Inert gas-permeable granular support materials impregnated with alkali ferrates wherein the ferrates are iron compounds having an oxidation state of +4, +5, or +6 are disclosed. When they are used as a granular filter material in combination with a tobacco product, hydrogen cyanide can be significantly reduced in the smoke obtained from the tobacco product. Activated carbon or alumina impregnated with sodium permanganate and a basic sodium compound may also be combined with the granular filter material.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: January 27, 1981
    Assignee: Philip Morris Incorporated
    Inventors: Norman B. Rainer, Cynthia V. Bailey