Patents by Inventor Craig Daniel Tipton

Craig Daniel Tipton 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).

  • Lubricant compositions to reduce noise in a push belt continuous variable transmission
    Patent number: 5750477
    Abstract: A shear stable composition for reducing noise in a push belt continuously variable transmission. The composition comprises an oil of lubricating viscosity, an overbased metal salt of an organic acid and a shear stable viscosity index improver.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: May 12, 1998
    Assignee: The Lubrizol Corporation
    Inventors: James L. Sumiejski, Roy Fewkes, Craig Daniel Tipton