Patents by Inventor Brent R. Dohnar

Brent R. Dohnar 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).

  • Star Polymer Lubricating Composition
    Publication number: 20090298729
    Abstract: The invention provides a lubricating composition containing (a) 0.001 wt % to 15 wt % of a polymer with radial or star architecture; (b) an overbased detergent; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.
    Type: Application
    Filed: April 19, 2007
    Publication date: December 3, 2009
    Applicant: The Lubrizol Corporation
    Inventors: Barton J. Schober, Mark C. Davies, Michael R. Sutton, Marina Baum, Daniel C. Visger, David Price, Brent R. Dohnar, Mark F. Wilkes