Patents by Inventor Daniel J. Visger

Daniel J. Visger 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).

  • Novel Copolymers and Lubricating Compositions Thereof
    Publication number: 20130310290
    Abstract: The present invention relates to a copolymer comprising units derived from monomers (i) an ?-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof esterified with a primary alcohol branched at the ?- or higher position, wherein the copolymer has a reduced specific viscosity of up to 0.08. The invention further provides for a lubricating composition containing said copolymer. The invention further provides a method and use of controlling viscosity index by supplying to an oil of lubricating viscosity the copolymer with pendant groups. In addition, the copolymer of the present invention may be useful as a base oil replacement.
    Type: Application
    Filed: July 25, 2013
    Publication date: November 21, 2013
    Applicant: The Lubrizol Corporation
    Inventors: David Price, William Barton, Daniel J. Visger