Patents by Inventor Mark P. Stehlin

Mark P. Stehlin 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).

  • Fatty acid amide lubricity aids and related methods for improvement of lubricity of fuels
    Patent number: 6562086
    Abstract: A fuel composition of improved lubricity comprises a lubricity-increasing amount of a lubricity aid dissolved in low sulfur diesel fuel and spark ignition fuels. The lubricity aid is an alkanolamide of a fatty acid, an alkanolamide of a modified fatty acid or a mixture thereof. If the lubricity aid is other than an alkanolamide of an aryl-substituted fatty acid, the composition further necessarily comprises a haze-inhibiting amount of a dehazer. The lubricity of such fuels may be enhanced without acceptably increasing the tendency of the fuel to become hazy upon contact with water.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: May 13, 2003
    Assignee: Baker Hughes Inc.
    Inventors: David R. Gentry, Mark P. Stehlin, Jerry J. Weers