Patents by Inventor Fred C. Wireko

Fred C. Wireko 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).

  • Catalysts for the conversion of hydroxypropionic acid or its derivatives to acrylic acid or its derivatives
    Patent number: 10106484
    Abstract: Catalysts for dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity, short residence time, and without significant conversion to undesired side products, such as, for example, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed condensed phosphates. Methods of preparing the catalysts are also provided.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: October 23, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Juan Estaban Velasquez, Janette Villalobos Lingoes, Jane Ellen Godlewski, Dimitris Ioannis Collias, Fred C. Wireko, Marc Andrew Mamak, Nancy Lee Redman-Furey
  • Catalysts For The Conversion Of Hydroxypropionic Acid Or Its Derivatives To Acrylic Acid Or Its Derivatives
    Publication number: 20130274094
    Abstract: Catalysts for dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity, short residence time, and without significant conversion to undesired side products, such as, for example, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed condensed phosphates. Methods of preparing the catalysts are also provided.
    Type: Application
    Filed: February 6, 2013
    Publication date: October 17, 2013
    Applicant: THE PROCTER & GAMBLE COMPANY
    Inventors: Juan Estaban Velasquez, Janette Villalobos Lingoes, Jane Ellen Godlewski, Dimitris Ioannis Collias, Fred C. Wireko, Marc Andrew Mamak, Nancy Lee Redman-Furey
  • Dual phase stannous oral compositions
    Patent number: 6521216
    Abstract: The present invention relates to dual phase oral compositions providing effective antimicobial activity for reducing plaque and gingivitis. One of the phases of the dual phase composition will contain stannous. The stannous phase comprises a stannous ion source, a fluoride ion source, and a gluconate salt. The stannous phase is essentially free of either an abrasive polishing material or chloride ions. The stannous phase containing phase inhibits the formation of a stannous chloro gluconate complex. The present invention also provides a method for effective delivery of stannous-containing compositions.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: February 18, 2003
    Assignee: The Procter & Gamble Company
    Inventors: William M. Glandorf, Cloyd Dixon, Jr., David S. Jacobs, Gary L. Walden, Fred C. Wireko