Patents by Inventor John M. Pietras

John M. Pietras 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).

  • High TBN / low phosphorus economic STUO lubricants
    Patent number: 8586516
    Abstract: There is disclosed a Super Tractor Oil Universal lubricating composition comprising an oil of lubricating viscosity formulated with an additive package comprising at least one metal detergent, at least one phosphorus-based wear preventative, and at least one molybdenum compound. Methods for improving the braking performance of a tractor and the anti-wear protection of a tractor engine are also disclosed.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: November 19, 2013
    Assignee: Afton Chemical Corporation
    Inventors: Jeffrey L. Milner, Peter L. Leitner, John M. Pietras
  • HIGH TBN / LOW PHOSPHORUS ECONOMIC STUO LUBRICANTS
    Publication number: 20080176777
    Abstract: There is disclosed a Super Tractor Oil Universal lubricating composition comprising an oil of lubricating viscosity formulated with an additive package comprising at least one metal detergent, at least one phosphorus-based wear preventative, and at least one molybdenum compound. Methods for improving the braking performance of a tractor and the anti-wear protection of a tractor engine are also disclosed.
    Type: Application
    Filed: January 19, 2007
    Publication date: July 24, 2008
    Inventors: Jeffrey L. Milner, Peter L. Leitner, John M. Pietras