Patents by Inventor Randall R. Bernhardt

Randall R. Bernhardt 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).

  • Method of making alkyl esters using glycerin
    Patent number: 6822105
    Abstract: A method for making alkylesters, or methylester specifically, such as biodiesel, from an oil source is described. The method involves converting the free fatty acids of the oil source into a mixture of mono-, di-, and tri-glycerides and subsequently transesterifying the newly formed glycerides as well as the originally present glycerides into fatty acid alkyl esters.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: November 23, 2004
    Assignee: Stepan Company
    Inventors: Franz J. Luxem, Jenifer Heydinger Galante, William M. Troy, Randall R. Bernhardt