Patents by Inventor Richerd A Hayden

Richerd A Hayden 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).

  • Method for removing chloramine with catalytic carbon
    Patent number: 5338458
    Abstract: An improved process is provided for the removal of chloramines from gas or liquid media by contacting said media with a catalytically-active carbonaceous char. The improvement is provided by the use of a carbonaceous char capable of rapidly decomposing hydrogen peroxide in aqueous solutions.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: August 16, 1994
    Assignee: Calgon Carbon Corporation
    Inventors: Robert V. Carrubba, Richerd A Hayden, Thomas M. Matviya