Patents by Inventor Patricia A. Reardon

Patricia A. Reardon 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).

  • Amine/gallic acid blends as oxygen scavengers
    Patent number: 4929364
    Abstract: An aqueous concentrate useful for treating boiler waters to scavenge oxygen therefrom which contains at least 0.3% by weight of either gallic acid or propyl gallate. This aqueous concentrate has a pH adjusted to at least 8.5 by a water-soluble neutralizing amine of the type used to treat boiler waters. Additionally, a method for treating boiler waters with an oxygen scavenger.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: May 29, 1990
    Assignee: Nalco Chemical Company
    Inventors: Patricia A. Reardon, David A. Grattan