Patents Represented by Attorney Dragon J. Karadzic

Find this attorney in the Justia Lawyer Directory

  • Lubricant antioxidants
    Patent number: 4390437
    Abstract: This invention relates to improved hydrocarbon lubricating oil compositions. More particularly this invention relates to hydrocarbon oil compositions which possess improved oxidation inhibition properties through the presence of a new additive functioning as an antioxidant or as an antioxidant catalyst which acts as a chain terminating species for oxidation reactions.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: June 28, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventors: Richard J. Lee, Lynn M. R. Murphy