Patents by Inventor Robert D. DURA

Robert D. DURA 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).

  • Protected mercaptophenols and thiophenols for lubricating compositions
    Patent number: 10767133
    Abstract: A lubricating composition includes an oil of lubricating viscosity and a compound comprising a protected mercaptophenol. The protected mercaptophenol includes a mercapto group in which the hydrogen is substituted with a substituent of at least 5 carbons. The substituent is selected from hydroxy-substituted hydrocarbyl groups, poly(ether) groups, hydrocarbyl groups, and mixtures and salts thereof.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: September 8, 2020
    Assignee: The Lubrizol Corporation
    Inventor: Robert D. Dura
  • Aromatic detergents and lubricating compositions thereof
    Patent number: 10526559
    Abstract: The disclosed technology provides a lubricating composition comprising an oil of lubricating viscosity and 0.2 wt % to 10 wt % of a salt of a hydroxyl functional aromatic compound. The disclosed technology further relates to a method of lubricating a mechanical device with the lubricant composition.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: January 7, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Kamalakumari Kunchithapatham Salem, David J. Moreton, Mohamed G. Fahmy, Gary M. Walker, James P. Roski, Adam Cox, W. Preston Barnes, Ewan E. Delbridge, Jason E. Melvin, Robert D. Dura
  • PROTECTED MERCAPTOPHENOLS AND THIOPHENOLS FOR LUBRICATING COMPOSITIONS
    Publication number: 20180371351
    Abstract: A lubricating composition includes an oil of lubricating viscosity and a compound comprising a protected mercaptophenol. The protected mercaptophenol includes a mercapto group in which the hydrogen is substituted with a substituent of at least 5 carbons. The substituent is selected from hydroxy-substituted hydrocarbyl groups, poly(ether) groups, hydrocarbyl groups, and mixtures and salts thereof.
    Type: Application
    Filed: December 7, 2016
    Publication date: December 27, 2018
    Inventor: Robert D. Dura
  • AROMATIC DETERGENTS AND LUBRICATING COMPOSITIONS THEREOF
    Publication number: 20180051224
    Abstract: The disclosed technology provides a lubricating composition comprising an oil of lubricating viscosity and 0.2 wt % to 10 wt % of a salt of a hydroxyl functional aromatic compound. The disclosed technology further relates to a method of lubricating a mechanical device with the lubricant composition.
    Type: Application
    Filed: February 25, 2016
    Publication date: February 22, 2018
    Inventors: Kamalakumari KUNCHITHAPATHAM SALEM, David J. MORETON, Mohamed G. FAHMY, Gary M. WALKER, James P. ROSKI, Adam COX, W. Preston BARNES, Ewan E. DELBRIDGE, Jason E. MELVIN, Robert D. DURA