Patents by Inventor DeAnn WILLS-GUY

DeAnn WILLS-GUY 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 control for water systems using tin corrosion inhibitor with a hydroxycarboxylic acid
    Patent number: 10174429
    Abstract: There are provided methods and methods and compositions for suppressing corrosion of a corrodible metal surface that contacts a water stream in a water system. The method comprises introducing into the water stream a treatment composition, the treatment composition including a Tin(II) corrosion inhibitor and a hydroxycarboxylic acid promoter.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: January 8, 2019
    Assignee: CHEMTREAT, INC
    Inventors: Rajendra Prasad Kalakodimi, Curt Turner, DeAnn Wills-Guy
  • CORROSION CONTROL FOR WATER SYSTEMS USING TIN CORROSION INHIBITOR WITH A HYDROXYCARBOXYLIC ACID
    Publication number: 20170130340
    Abstract: There are provided methods and methods and compositions for suppressing corrosion of a corrodible metal surface that contacts a water stream in a water system. The method comprises introducing into the water stream a treatment composition, the treatment composition including a Tin(II) corrosion inhibitor and a hydroxycarboxylic acid promoter.
    Type: Application
    Filed: November 5, 2015
    Publication date: May 11, 2017
    Inventors: Rajendra Prasad KALAKODIMI, Curt TURNER, DeAnn WILLS-GUY
  • Corrosion control methods
    Patent number: 9290849
    Abstract: There are provided methods of suppressing corrosion of a corrodible metal surface that contacts a water stream in a water system, the method comprising: (a) introducing into the water stream a shot dose of a treatment composition comprising a corrosion inhibitor, the shot dose being introduced into the water stream over a first time period and the water stream having a first concentration of corrosion inhibitor during the first time period; (b) then reducing the amount of treatment composition that is introduced into the water stream; and (c) after the first time period, maintaining a second concentration of corrosion inhibitor in the water stream over a second time period, the second concentration being less than 25% of the concentration of corrosion inhibitor during the first time period.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: March 22, 2016
    Assignee: CHEMTREAT, INC.
    Inventors: John Richardson, Rajendra Kalakodimi, DeAnn Wills-Guy
  • CORROSION CONTROL METHODS
    Publication number: 20150004054
    Abstract: There are provided methods of suppressing corrosion of a corrodible metal surface that contacts a water stream in a water system, the method comprising: (a) introducing into the water stream a shot dose of a treatment composition comprising a corrosion inhibitor, the shot dose being introduced into the water stream over a first time period and the water stream having a first concentration of corrosion inhibitor during the first time period; (b) then reducing the amount of treatment composition that is introduced into the water stream; and (c) after the first time period, maintaining a second concentration of corrosion inhibitor in the water stream over a second time period, the second concentration being less than 25% of the concentration of corrosion inhibitor during the first time period.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Inventors: John RICHARDSON, Rajendra KALAKODIMI, DeAnn WILLS-GUY