Patents by Inventor Timothy Oster

Timothy Oster 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).

  • Metal salts of a dialkyl ester of 5-sulfoisophthalic acid and method of preparing same
    Patent number: 9193677
    Abstract: The claimed invention meets these and other objects by providing a method of preparing a metal salt of a dialkyl ester of 5-sulfoisophthalic acid. Broadly speaking, the method provides for the contacting of a dialkyl ester of 5-sulfoisophthalic acid with a metal cation in a buffered reaction mixture to form the metal salt of the dialkyl ester. The reaction mixture is buffered, at least in part, by the acetate of the metal cation. The method according to invention also encompasses various methods of preparing the dialkyl ester of 5-sulfoisophthalic acid.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: November 24, 2015
    Assignee: FutureFuel Chemical Company
    Inventor: Timothy Oster