Patents by Inventor Hongsang Ahn

Hongsang Ahn 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).

  • Patent number: 6235918
    Abstract: Novel heterogeneous catalysts for the which hydrogenation of olefins and arenes with high conversion rates under ambient conditions and the polymerization of olefins have been developed. The catalysts are synthesized from Ziegler-type precatalysts by supporting them on sulfate-modified zirconia.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: May 22, 2001
    Assignee: Northwestern University
    Inventors: Tobin J. Marks, Hongsang Ahn