Patents by Inventor Susan L. Kovacic

Susan L. Kovacic 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).

  • Activated carbon treated by carbon dioxide for the stabilization of treated water pH and the control of aluminum in the treated water
    Patent number: 5876607
    Abstract: Treatment of a wet activated carbon with carbon dioxide or with carbon dioxide followed by air results in a carbon having a reduced contact pH. The activated carbon is characterized by a modified contact pH less than about 9.0 and typically between about 7.3 and 9.0. Use of this carbon in a water treatment system eliminates the excessive effluent water pH rise which commonly occurs with activated carbon. Also use of this carbon in a water treatment system reduces the aluminum concentration of the water when compared to an untreated carbon.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: March 2, 1999
    Assignee: Calgon Carbon Corporation
    Inventors: Richard W. Farmer, Susan L. Kovacic, Brett Leslie Pinker, Thomas M. Matviya, Netar P. Wadhwa
  • Activated carbon treated by carbon dioxide for the stabilization of treated water pH
    Patent number: 5714433
    Abstract: Treatment of a wet activated carbon with carbon dioxide or with carbon dioxide followed by air results in a carbon having a reduced contact pH. The activated carbon is characterized by a modified contact pH less than about 9.0 and typically between about 7.3 and 9.0. Use of this carbon in a water treatment system eliminates the excessive effluent water pH rise which commonly occurs with activated carbon.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: February 3, 1998
    Assignee: Calgon Carbon Corporation
    Inventors: Richard W. Farmer, Susan L. Kovacic, Thomas M. Matviya, Netar P. Wadhwa