Patents by Inventor Timothy Ray Underwood

Timothy Ray Underwood 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 inhibitors for passivation of galvanized coatings and carbon steel
    Patent number: 10683576
    Abstract: An additive comprising one or more C3-C12 hydroxycarboxylic acids and/or one or more C3-C12 hydroxycarboxylic acid salts may be added to an aqueous system having galvanized metallurgy or a carbon steel surface in an effective amount to passivate a galvanized coating on the metallurgy or to decrease white rust formation or other types of corrosion upon the galvanized metallurgy or carbon steel surface in an aqueous system. In a non-limiting embodiment, the C3-C12 hydroxycarboxylic acid or the C3-C12 hydroxycarboxylic acid salt additive may utilize the zinc in the galvanized coating to achieve passivation. The passivation may occur while the system is shut down or in service. The aqueous system may be or include a cooling tower, a cooling water system, and combinations thereof. The additive may be used with or in the absence of a phosphorous-containing compound.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: June 16, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Mary Jane Legaspi Felipe, Timothy Ray Underwood, Albert Sidney Dunn, David N. Fulmer, Montgomery A. Pifer, Stephen J. Wiacek, Khac Truc Nguyen, William Mansfield, William Watson, Chelsea Eaton
  • Corrosion Inhibitors for Passivation of Galvanized Coatings and Carbon Steel
    Publication number: 20180274105
    Abstract: An additive comprising one or more C3-C12 hydroxycarboxylic acids and/or one or more C3-C12 hydroxycarboxylic acid salts may be added to an aqueous system having galvanized metallurgy or a carbon steel surface in an effective amount to passivate a galvanized coating on the metallurgy or to decrease white rust formation or other types of corrosion upon the galvanized metallurgy or carbon steel surface in an aqueous system. In a non-limiting embodiment, the C3-C12 hydroxycarboxylic acid or the C3-C12 hydroxycarboxylic acid salt additive may utilize the zinc in the galvanized coating to achieve passivation. The passivation may occur while the system is shut down or in service. The aqueous system may be or include a cooling tower, a cooling water system, and combinations thereof. The additive may be used with or in the absence of a phosphorous-containing compound.
    Type: Application
    Filed: March 23, 2018
    Publication date: September 27, 2018
    Applicant: Baker Hughes, a GE company, LLC
    Inventors: Mary Jane Legaspi Felipe, Timothy Ray Underwood, Albert Sidney Dunn, David N. Fulmer, Montgomery A. Pifer, Stephen J. Wiacek, Khac Truc Nguyen, William Mansfield, William Watson, Chelsea Eaton