Patents by Inventor Stefan Kent Mierau

Stefan Kent Mierau 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).

  • Nickel-rhenium catalyst for use in reductive amination processes
    Patent number: 6534441
    Abstract: A nickel/rhenium catalyst composition for the reductive amination of lower aliphatic alkane derivatives is described. The catalyst includes from about 2 to about 75 weight percent nickel and has a nickel to rhenium weight percent ratio of from about 1:1 to about 200:1. The nickel and rhenium are supported on an alumina-silica support which contains from about 5 to about 65 weight percent silica and has a BET surface area of from about 30 to about 450 m2/g. A process for the reductive amination of lower aliphatic alkane derivatives using such a catalyst composition is also provided.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: March 18, 2003
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: William J Bartley, Ronald Gary Cook, Kendrick Edward Curry, Stefan Kent Mierau