Patents by Inventor William E. Stapp

William E. Stapp 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).

  • Corrosion inhibition compositions and methods for using the same
    Patent number: 7910024
    Abstract: Compositions and methods are described for inhibiting corrosion of corrodible metals present in contact with water in cooling water and other water storage systems. The compositions include concentrated stannous salts and agents to solubilize such salts.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: March 22, 2011
    Assignee: A.S. Inc.
    Inventors: William E. Stapp, Gary Westlund
  • Water treatment method for reducing levels of Cr+6
    Patent number: 6649071
    Abstract: A treatment effective for removing or substantially reducing the amount of Cr+6 present in drinking water or wastewater is described. The method includes adding a stannous salt of a non-carbon acid, in an amount effective to reduce most or substantially all of the chromic ion in the water.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: November 18, 2003
    Assignee: A. S. Incorporated
    Inventor: William E. Stapp
  • Water treatment method for reducing levels of Cr+6
    Publication number: 20020195405
    Abstract: A treatment effective for removing or substantially reducing the amount of Cr+6 present in drinking water or wastewater is described. The method includes adding a stannous salt of a non-carbon acid, in an amount effective to reduce most or substantially all of the chromic ion in the water.
    Type: Application
    Filed: January 25, 2002
    Publication date: December 26, 2002
    Inventor: William E. Stapp