Patents by Inventor Ralph Eric Olsen

Ralph Eric Olsen 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).

  • Lubricating oil composition with improved emission compatibility
    Patent number: 7981846
    Abstract: A lubricating oil composition comprising a major amount of an oil of lubricating viscosity, an alkaline earth metal borated sulfonate detergent, and, optionally, a molybdenum-containing compound, wherein the lubricating oil composition comprises no more than 0.12 wt % phosphorus and the amount of sulfated ash in the lubricating oil is not more than 1.25 wt %.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: July 19, 2011
    Assignee: Chevron Oronite Company LLC
    Inventors: Alexander B. Boffa, Ralph Eric Olsen, Willem Van Dam