Patents by Inventor Nancy L. Passantino

Nancy L. Passantino 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).

  • Dust control and ore handling aid for bauxite ore
    Patent number: 5181957
    Abstract: The invention provides a method for the suppression of bauxite dust emissions from dry, finely divided bauxite ore. The method includes the step of contacting bauxite ore with an aqueous solution of a water-soluble vinyl addition polymer. The polymer being selected from the group consisting of non-ionic and anionic water-soluble vinyl addition polymers.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: January 26, 1993
    Assignee: Nalco Chemical Company
    Inventors: Anthony E. Gross, Nancy L. Passantino