Patents by Inventor Jon D. Probst

Jon D. Probst 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).

  • Hydrocarbon refining process
    Patent number: 4695365
    Abstract: A spindle oil is hydrotreated and then hydrodewaxed in the presence of a catalyst containing at least 70 percent by weight of an intermediate pore molecular sieve in the support so as to produce a selected fraction having a low pour point and viscosity comparable to the original spindle oil, said fraction being then suitable as a "cutter stock" for lowering the pour point of fuel oils.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: September 22, 1987
    Assignee: Union Oil Company of California
    Inventors: Donald B. Ackelson, Eric L. Moorehead, John W. Ward, Jon D. Probst