Patents by Inventor Christopher D. Hilker

Christopher D. Hilker 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).

  • Process for making substituted trithiocarbonate derivatives
    Patent number: 8791286
    Abstract: The present invention provides a low cost technique for synthesizing substituted trithiocarbonates and derivates thereof, by a one-step process which does not require solvent washes or re-crystallization steps, and results in practical yields more than double that of processes disclosed in the prior art.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: July 29, 2014
    Assignee: The Lubrizol Corporation
    Inventors: Richard Yodice, John R. Johnson, Ross L. Beebe, Anthony J. Brzytwa, Christopher D. Hilker