Patents by Inventor Sara B. Pocinki

Sara B. Pocinki 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).

  • Low ash stationary gas engine lubricant
    Patent number: 7772169
    Abstract: A low-ash, low-phosphorus lubricant composition suitable for use in a stationary gas engine includes an oil of lubricating viscosity, 1.5 to 8 percent of a succinimide dispersant, 0.8 to 4.0 percent of a hindered, ester-substituted phenol antioxidant, and at least one metal-containing sulfonate detergent or metal-containing phenate detergent, in an amount which provides 1.1 to 2.1 percent by weight of said sulfonate or phenate moieties exclusive of the weight of the metal moieties. The lubricant contains up to 0.08 percent by weight phosphorus and up to 1.25 percent sulfated ash.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: August 10, 2010
    Assignee: The Lubrizol Corporation
    Inventors: W. Preston Barnes, Virginia A. Carrick, Sara B. Pocinki, Jayram D. Patel