Patents by Inventor Bertrand W. Dussert

Bertrand W. Dussert 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).

  • Oxidized activated carbon for the control of pH and alkalinity in water treatment applications
    Patent number: 5466378
    Abstract: An oxidized activated carbon having a contact pH between 7.1 and 8.2 for general use in aqueous treatment systems to prevent pH and alkalinity excursions during start-up of the system and an oxidized activated carbon having a contact pH between 6.0 and 9.5 for specific use in aqueous treatment systems to control pH and alkalinity changes during water treatment.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: November 14, 1995
    Assignee: Calgon Carbon Corporation
    Inventors: Bertrand W. Dussert, Richard W. Farmer, Richard A. Hayden
  • Activated carbon oxidized by air at near ambient temperatures for the control of ph and in water treatment applications
    Patent number: 5368739
    Abstract: An activated carbon oxidized by air or oxygen at near ambient temperatures having a contact pH between 7.6 and 8.5 for use in water treatment systems to prevent pH excursions during operation of the system.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: November 29, 1994
    Assignee: Calgon Carbon Corporation
    Inventors: Bertrand W. Dussert, Richard A. Hayden, John R. Lutchko, Kishio Yoshino, Satoru Hisaki, Fujito Ehara
  • Oxidized activated carbon for the control of pH and alkalinity in water treatment applications
    Patent number: 5368738
    Abstract: An oxidized activated carbon having a contact pH between 7.1 and 8.2 for use in aqueous treatment systems to prevent pH and alkalinity excursions during start-up of the system.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: November 29, 1994
    Assignee: Calgon Carbon Corporation
    Inventors: Bertrand W. Dussert, Richard A. Hayden